Q: What is the negative version of the number 664,562,521?
A: -664,562,521
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:
| 664,562,519 | 664,562,520 | 664,562,522 | 664,562,523 |
| -664,562,519 | -664,562,520 | -664,562,522 | -664,562,523 |