How Many Zeros in a Novemdecillion?
A novemdecillion has 60 zeros in the short-scale system: 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000. In scientific notation this is 1060. The name comes from the Latin novemdecim (nineteen), making it the 19th "-illion" after a million in the standard US numbering sequence. Novemdecillion follows octodecillion (1057) and comes just before vigintillion (1063). At this scale, the number has physical significance — the estimated volume of the observable universe measured in cubic inches is in the novemdecillion range. In the long-scale system, the same word means 10114, or 114 zeros. Related: Million zeros.
A novemdecillion has
60
zeros
- Written Form
- 1 followed by 60 zeros
- Scientific
- 10⁶⁰
Is Novemdecillion a Real Number, and How Many Zeros Does It Have?
Yes — novemdecillion is a real, formally defined number. It is not slang or an approximation. In the US short-scale system, it equals 1060: exactly 60 zeros following the digit 1. The zero count follows the standard formula: the 19th "-illion" has 3 × 19 + 3 = 60 zeros. Learn more about tredecillion zeros.
The number also appears in legitimate scientific contexts. Some estimates of the volume of the observable universe expressed in cubic inches land in the novemdecillion range (roughly 4 × 1061), making it one of the higher "-illion" names that still connects to a measurable physical quantity.
| Name | Zeros | Scientific Notation |
|---|---|---|
| Octodecillion | 57 | 1057 |
| Novemdecillion | 60 | 1060 |
| Vigintillion | 63 | 1063 |
What Is the Long-Scale Novemdecillion?
In the long-scale system, a novemdecillion equals 10114 — a number with 114 zeros. The long scale computes each "-illion" as (106)n, so novemdecillion = (106)19 = 10114. This differs from the short-scale value by a factor of 1054, which is one septendecillion.
The novemdecillion name is sometimes written as novendecillion (with a v instead of m). Both spellings refer to the same number. The novem- variant is slightly more common in American dictionaries, while noven- appears in some British and European sources.