Q: What is the negative version of the number 666,660,123?
A: -666,660,123
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:
| 666,660,121 | 666,660,122 | 666,660,124 | 666,660,125 |
| -666,660,121 | -666,660,122 | -666,660,124 | -666,660,125 |