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.
[-66, 20, -4.681, -36.615, -78, 1.874, 25.97, -21.108, 17.948, -76, -23.351]