Q: What is the negative version of the number 21,615,664?
A: -21,615,664
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:
| 21,615,662 | 21,615,663 | 21,615,665 | 21,615,666 |
| -21,615,662 | -21,615,663 | -21,615,665 | -21,615,666 |