Q: What is the negative version of the number 19,664,521?
A: -19,664,521
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 19,664,519 | 19,664,520 | 19,664,522 | 19,664,523 |
| -19,664,519 | -19,664,520 | -19,664,522 | -19,664,523 |