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.
[-5.784, -52.893, 15, -17, -47.39, -19.639, -23.857, 70, 21.975, 22.489, -67]