22165056 has 112 divisors (see below), whose sum is σ = 66324480. Its totient is φ = 7257600.

The previous prime is 22165043. The next prime is 22165097. The reversal of 22165056 is 65056122.

22165056 is a `hidden beast` number, since 2 + 2 + 1 + 650 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174465 + ... + 174591.

Almost surely, 2^22165056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22165056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33162240).

22165056 is an abundant number, since it is smaller than the sum of its proper divisors (44159424).

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

22165056 is a wasteful number, since it uses less digits than its factorization.

22165056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22165056 is about 4707.9779098887. The cubic root of 22165056 is about 280.9029354515.

The spelling of 22165056 in words is "twenty-two million, one hundred sixty-five thousand, fifty-six".