How many zeros are their in one quintillion's?

Answer 1

This depends upon whether you mean the English quintillion or the American quintillion.

In the English form of numbers, the number order goes as follows:

million, billion, trillion, quadrillion then quintillion. Therefore the amount of zeros will be 18.

In the American form, the number order duplicates itself, so-to-speak, making each major sector have more numbers. The number order goes as follows:

million, thousand million, billion, thousand billion, trillion... etc. Therefore the amount of zeros will be 30.