22663165 has 32 divisors (see below), whose sum is σ = 33177600. Its totient is φ = 14524224.

The previous prime is 22663163. The next prime is 22663189. The reversal of 22663165 is 56136622.

It is not a de Polignac number, because 22663165 - 2¹ = 22663163 is a prime.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37536 + ... + 38134.

It is an arithmetic number, because the mean of its divisors is an integer number (1036800).

Almost surely, 2^22663165 is an apocalyptic number.

It is an amenable number.

22663165 is a deficient number, since it is larger than the sum of its proper divisors (10514435).

22663165 is a wasteful number, since it uses less digits than its factorization.

22663165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681.

The product of its digits is 12960, while the sum is 31.

The square root of 22663165 is about 4760.5845229341. The cubic root of 22663165 is about 282.9915841121.

Adding to 22663165 its reverse (56136622), we get a palindrome (78799787).

The spelling of 22663165 in words is "twenty-two million, six hundred sixty-three thousand, one hundred sixty-five".