22665516 has 12 divisors (see below), whose sum is σ = 52886232. Its totient is φ = 7555168.

The previous prime is 22665493. The next prime is 22665523. The reversal of 22665516 is 61556622.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944385 + ... + 944408.

It is an arithmetic number, because the mean of its divisors is an integer number (4407186).

Almost surely, 2^22665516 is an apocalyptic number.

It is an amenable number.

22665516 is an abundant number, since it is smaller than the sum of its proper divisors (30220716).

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

22665516 is a wasteful number, since it uses less digits than its factorization.

22665516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888800 (or 1888798 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 22665516 is about 4760.8314399903. The cubic root of 22665516 is about 283.0013693034.

The spelling of 22665516 in words is "twenty-two million, six hundred sixty-five thousand, five hundred sixteen".