Q: What is the negative version of the number 644,765,159?
A: -644,765,159
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:
| 644,765,157 | 644,765,158 | 644,765,160 | 644,765,161 |
| -644,765,157 | -644,765,158 | -644,765,160 | -644,765,161 |