Definition: In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
Input: [-16.575, -26, -9.12, 28.791, 2.916, 88.687, 6.344, -2, 2.598]

[-26, -2]