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A Octodecillion (1 Octodecillion) is 10 to the power of 57 (10^57). This is a giant number!

How many zeros in a Octodecillion?

There are 57 zeros in a Octodecillion.

What's before Octodecillion?

A Septendecillion is smaller than a Octodecillion.

What's after Octodecillion?

A Novendecillion is larger than a Octodecillion.


A Octodecillionaire is someone whos assets, net worth or wealth is 1 or more Octodecillion. It is unlikely anyone will ever be a true Octodecillionaire. If you want to be a Octodecillionaire, play Tap Tales!

Is Octodecillion the largest number?

Octodecillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

Octodecillion written out

Octodecillion is written out as:


Big Numbers

This is just one of many really big numbers!

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