Q: What is the negative version of the number 644,177,064?
A: -644,177,064
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:
| 644,177,062 | 644,177,063 | 644,177,065 | 644,177,066 |
| -644,177,062 | -644,177,063 | -644,177,065 | -644,177,066 |