Q: What is the negative version of the number 666,550,638?
A: -666,550,638
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:
| 666,550,636 | 666,550,637 | 666,550,639 | 666,550,640 |
| -666,550,636 | -666,550,637 | -666,550,639 | -666,550,640 |