Q: What is the negative version of the number 664,604,645?
A: -664,604,645
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:
| 664,604,643 | 664,604,644 | 664,604,646 | 664,604,647 |
| -664,604,643 | -664,604,644 | -664,604,646 | -664,604,647 |