22155164 has 24 divisors (see below), whose sum is σ = 40648608. Its totient is φ = 10545920.

The previous prime is 22155163. The next prime is 22155167. The reversal of 22155164 is 46155122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25424 + ... + 26280.

It is an arithmetic number, because the mean of its divisors is an integer number (1693692).

Almost surely, 2^22155164 is an apocalyptic number.

It is an amenable number.

22155164 is a deficient number, since it is larger than the sum of its proper divisors (18493444).

22155164 is a wasteful number, since it uses less digits than its factorization.

22155164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1163 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 22155164 is about 4706.9272354690. The cubic root of 22155164 is about 280.8611413575.

The spelling of 22155164 in words is "twenty-two million, one hundred fifty-five thousand, one hundred sixty-four".