## What Is a Quintillion in Math?

**A quintillion is represented as ****1,000,000,000,000,000,000**.

So, how many zeros are in a quintillion? Let’s count the quintillion zeros!

*Alt tag: quintillion zeros*

Thus, 1 followed by 18 zeros makes a quintillion.

In an exponent form, a quintillion is simply $10^{18}$ or 10 raised to the power of 18.

*Alt tag: quintillion*

Thus, you can see that a quintillion is a large number in math. It is used to represent huge quantities.^{ }It is used in extremely complex scientific calculations dealing with celestial bodies, the universe or the solar system.

The prefix “exa” is used for quantities of a quintillion. It represents the factor of $10^{18}$.

For example,

(i) An exabyte is equal to one quintillion bytes

(ii) An exameter is equal to one quintillion meters

(iii) An exascale refers to the speed of computing systems, equal to one quintillion operations per second.

## How Much Is a Quintillion?

To understand a large number and to make a sense of it, we can represent it in different ways or in terms of smaller quantities.

- Scientific notation: $1 \times 10^{18}$

- A million million millions

$1,000,000 \times 1,000,000 \times 1,000,000 = 1,000,000,000,000,000,000$

- Billion Billions

$1,000,000,000 \times 1,000,000,000 = 1,000,000,000,000,000,000$

- Million Trillions

$1,000,000 \times 1,000,000, 000,000$

- The fifth power of a million $= (1,000,000,000)^5$

### Quintillion in Math: Definition

A quintillion is a cardinal number used to represent 10 raised to the power of 18.

1 Quintillion $= 10^{18}$.

*Alt tags: large numbers word forms*

## Place Values: Million, Billion, Trillion, Quadrillion, Quintillion

Place | Number | Number of zeros |

Ones | 1 | 0 |

Tens | 10 | 1 |

Hundreds | 100 | 2 |

Thousands | 1,000 | 3 |

Ten Thousands | 10,000 | 4 |

Hundred Thousands | 100,000 | 5 |

Million | 1,000,000 | 6 |

Ten Millions | 10,00,0000 | 7 |

Hundred Millions | 100,000,000 | 8 |

Billion | 1,000,000,000 | 9 |

Ten Billions | 10,000,000,000 | 10 |

Hundred Billions | 100,000,000,000 | 11 |

Trillion | 1,000,000,000,000 | 12 |

Ten Trillions | 10,000,000,000,000 | 13 |

Hundred Trillions | 100,000,000,000,000 | 14 |

Quadrillion | 1,000,000,000,000,000 | 15 |

Ten Quadrillions | 10,000,000,000,000,000 | 16 |

Hundred Quadrillions | 100,000,000,000,000,000 | 17 |

Quintillion | 1,000,000,000,000,000,000 | 18 |

## One Quintillion: Place Value Chart

Since 1 quintillion $= 10^18$, you can see that all the places starting from the ones place to the hundred quadrillions place have the digit “0.” The quintillions place has the digit “1.”

Ones | 0 |

Tens | 0 |

Hundreds | 0 |

Thousands | 0 |

Ten Thousands | 0 |

Hundred Thousands | 0 |

Million | 0 |

Ten Millions | 0 |

Hundred Millions | 0 |

Billion | 0 |

Ten Billions | 0 |

Hundred Billions | 0 |

Trillion | 0 |

Ten Trillions | 0 |

Hundred Trillions | 0 |

Quadrillion | 0 |

Ten Quadrillions | 0 |

Hundred Quadrillions | 0 |

Quintillion | 1 |

*Alt tag: Place value chart of a quintillion*

## Facts about Quintillion

- Twisting and turning the Rubik’s Cube results in unlimited permutations. The number of combinations of a Rubik’s Cube is 43,252,003,274,489,856,000 (about 43 Quintillions).
- The whole universe is about 68 quintillion times the size of Earth.
- The volume of Earth’s oceans is approximately 1.35 quintillion cubic meters.
- There are about 1.7 quintillion water molecules in one drop of water.
- There are about 10 quintillion insect species on the Earth.
- Our planet Earth has about 326 quintillion gallons of water.

## Conclusion

In this article, we learned about a large number “quintillion” along with its place values. Let’s solve a few examples and practice problems!

## Solved Examples on Quintillion

**1. How many quintillions is **$9,000,000 \times 5,000,000 \times 2,000,000$**?**

**Solution:**

$9,000,000 \times 5,000,000 \times 2,000,000 = 9 \times 10^6 \times 5 \times 10^6 \times 2 \times 10^6$

$= 90 \times 10^{18}$

$= 90,000,000,000,000,000,000$

We know that 1 quintillion is $10^{18}$ .

Hence, the given number 90,000,000,000,000,000,000 is 90 quintillions.

The product of the given numbers is 90 quintillions.

**2. What is the value of 12 million times 8 trillion?**

**Solution:**

$12$ millions $= 12 \times 10^6$

$8$ trillions $= 8 \times 10^12$

$\therefore 12$ million times 8 trillions $= 12 \times 10^6 \times 8 \times 10^{12}$

$= 96 \times 10^{18}$

$= 96$ quintillions

Hence, the value of 12 million times 8 trillion is 96 quintillions.

**3. Convert 80 quintillion into billions.**

**Solution:**

1 quintillion $= 1$ billion billions

$\therefore 80$ quintillions $= 80$ billion billions.

**4. Convert 125 quintillion into millions.**

**Solution:**

1 Quintillion $= 1$ Million Trillions

$\therefore 125$ Quintillions $= 125$ Million Trillions.

**5. What is 4 billion times 4 billion?**

**Solution:**

4 billions $= 4 \times 10^9$

$\therefore 4$ billion times 4 billion $= 4 \times 10^9 \times 4 \times 10^9$

$= 16 \times 10^{18}$

$= 16$ Quintillion

Hence, the value of 4 billion times 4 billion is 16 quintillion.

## Practice Problems on Quintillion

## Quintillion in Math: Definition with Examples

### $7,000,000 \times 2,000,000 \times 3,000,000 =$ ?

The product of the given numbers is $42 \times 10^{18}$.

Since, we know that 1 quintillion is $10^{18}$.

Hence, the given number is 42 quintillions.

### One quintillion $=$

1 quintillion is $10^{18}$.

### Convert 16 Quintillion into Billions.

1 Quintillion $= 1$ billion billions

$\therefore 16$ Quintillions $= 16$ billion billions.

### The prefix _____ is used for representing quantities of quintillion.

The prefix “exa” is used to represent quintillion quantities.

### What is 10 Billion times 9 Billion?

10 billion $=10 \times 10^9$

9 billion $= 9 \times 10^9$

$\therefore 10$ billion times 9 billion $= 10 \times 10^9 \times 9 \times 10^9$

$= 90 \times 10^18$

$= 90$ quintillion

Hence, the value of 10 billion times 9 billion is 90 quintillion.

### 1 quintillion dollars $=$

1 quintillion dollars $= \$1,000,000,000,000,000,000 = $One billion billion dollars $=$ One million trillion dollars

## Frequently Asked Questions on Quintillion

**Is a quintillion bigger than a sextillion?**

No. Quintillion is $10^18$. Sextillion is $10^21$.

**What objects can be measured using quintillion?**

Objects as huge as celestial bodies, the entire milky way, and the galaxy, etc., can be measured using quintillion.

**Is zillion an actual number?**

Zillion is not a specific number. It is an informal way of expressing a large number or a large quantity. It is slang confused with an actual number due to its similarity with the words “billion,” “million.”

**What is a googol?**

Googol is a large number equivalent to $10^100$.