Q: What is the negative version of the number 13,664,561?
A: -13,664,561
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:
| 13,664,559 | 13,664,560 | 13,664,562 | 13,664,563 |
| -13,664,559 | -13,664,560 | -13,664,562 | -13,664,563 |