Q: What is the negative version of the number 21,644,666?
A: -21,644,666
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:
| 21,644,664 | 21,644,665 | 21,644,667 | 21,644,668 |
| -21,644,664 | -21,644,665 | -21,644,667 | -21,644,668 |