22162665 has 16 divisors (see below), whose sum is σ = 40526208. Its totient is φ = 10131456.

The previous prime is 22162661. The next prime is 22162681. The reversal of 22162665 is 56626122.

It is not a de Polignac number, because 22162665 - 2² = 22162661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22162661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105432 + ... + 105641.

It is an arithmetic number, because the mean of its divisors is an integer number (2532888).

Almost surely, 2^22162665 is an apocalyptic number.

It is an amenable number.

22162665 is a deficient number, since it is larger than the sum of its proper divisors (18363543).

22162665 is a wasteful number, since it uses less digits than its factorization.

22162665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211088.

The product of its digits is 8640, while the sum is 30.

The square root of 22162665 is about 4707.7239723671. The cubic root of 22162665 is about 280.8928345210.

Adding to 22162665 its reverse (56626122), we get a palindrome (78788787).

The spelling of 22162665 in words is "twenty-two million, one hundred sixty-two thousand, six hundred sixty-five".