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A Octosexagintillion (1 Octosexagintillion) is 10 to the power of 207 (10^207). This is a very gargantuan number!

How many zeros in a Octosexagintillion?

There are 207 zeros in a Octosexagintillion.

What's before Octosexagintillion?

A Septensexagintillion is smaller than a Octosexagintillion.

What's after Octosexagintillion?

A Novensexagintillion is larger than a Octosexagintillion.


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

Is Octosexagintillion the largest number?

Octosexagintillion 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.

Octosexagintillion written out

Octosexagintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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