Q: What is the negative version of the number 163,644,663?
A: -163,644,663
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:
| 163,644,661 | 163,644,662 | 163,644,664 | 163,644,665 |
| -163,644,661 | -163,644,662 | -163,644,664 | -163,644,665 |