Q: What is the negative version of the number 665,540,121?
A: -665,540,121
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:
| 665,540,119 | 665,540,120 | 665,540,122 | 665,540,123 |
| -665,540,119 | -665,540,120 | -665,540,122 | -665,540,123 |