22663164 has 12 divisors (see below), whose sum is σ = 52880744. Its totient is φ = 7554384.

The previous prime is 22663163. The next prime is 22663189. The reversal of 22663164 is 46136622.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22663163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944287 + ... + 944310.

Almost surely, 2^22663164 is an apocalyptic number.

It is an amenable number.

22663164 is an abundant number, since it is smaller than the sum of its proper divisors (30217580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22663164 is a wasteful number, since it uses less digits than its factorization.

22663164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888604 (or 1888602 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 22663164 is about 4760.5844179050. The cubic root of 22663164 is about 282.9915799498.

Adding to 22663164 its reverse (46136622), we get a palindrome (68799786).

The spelling of 22663164 in words is "twenty-two million, six hundred sixty-three thousand, one hundred sixty-four".