22153605656564 has 24 divisors (see below), whose sum is σ = 39772390738080. Its totient is φ = 10791389869344.

The previous prime is 22153605656561. The next prime is 22153605656617. The reversal of 22153605656564 is 46565650635122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22153605656561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165485834 + ... + 165619649.

It is an arithmetic number, because the mean of its divisors is an integer number (1657182947420).

Almost surely, 2^{22153605656564} is an apocalyptic number.

It is an amenable number.

22153605656564 is a deficient number, since it is larger than the sum of its proper divisors (17618785081516).

22153605656564 is a wasteful number, since it uses less digits than its factorization.

22153605656564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331105919 (or 331105917 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 56.

The spelling of 22153605656564 in words is "twenty-two trillion, one hundred fifty-three billion, six hundred five million, six hundred fifty-six thousand, five hundred sixty-four".