Q: What is the negative version of the number 15,661,663?
A: -15,661,663
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:
| 15,661,661 | 15,661,662 | 15,661,664 | 15,661,665 |
| -15,661,661 | -15,661,662 | -15,661,664 | -15,661,665 |