Q: What is the negative version of the number 161,721,501?
A: -161,721,501
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:
| 161,721,499 | 161,721,500 | 161,721,502 | 161,721,503 |
| -161,721,499 | -161,721,500 | -161,721,502 | -161,721,503 |