22166356 has 12 divisors (see below), whose sum is σ = 38828160. Its totient is φ = 11072600.

The previous prime is 22166341. The next prime is 22166381. The reversal of 22166356 is 65366122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3831 + ... + 7681.

It is an arithmetic number, because the mean of its divisors is an integer number (3235680).

Almost surely, 2^22166356 is an apocalyptic number.

It is an amenable number.

22166356 is a deficient number, since it is larger than the sum of its proper divisors (16661804).

22166356 is a wasteful number, since it uses less digits than its factorization.

22166356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294 (or 5292 counting only the distinct ones).

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

The square root of 22166356 is about 4708.1159713839. The cubic root of 22166356 is about 280.9084270788.

It can be divided in two parts, 22166 and 356, that added together give a palindrome (22522).

The spelling of 22166356 in words is "twenty-two million, one hundred sixty-six thousand, three hundred fifty-six".