Q: What is the negative version of the number 163,644,661?
A: -163,644,661
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:
| 163,644,659 | 163,644,660 | 163,644,662 | 163,644,663 |
| -163,644,659 | -163,644,660 | -163,644,662 | -163,644,663 |