Q: What is the negative version of the number 21,166,640?
A: -21,166,640
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:
| 21,166,638 | 21,166,639 | 21,166,641 | 21,166,642 |
| -21,166,638 | -21,166,639 | -21,166,641 | -21,166,642 |