Q: What is the negative version of the number 155,666,221?
A: -155,666,221
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:
| 155,666,219 | 155,666,220 | 155,666,222 | 155,666,223 |
| -155,666,219 | -155,666,220 | -155,666,222 | -155,666,223 |