22456665 has 48 divisors (see below), whose sum is σ = 48537216. Its totient is φ = 9331200.

The previous prime is 22456649. The next prime is 22456691. The reversal of 22456665 is 56665422.

It is not a de Polignac number, because 22456665 - 2⁴ = 22456649 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 47 ways as a sum of consecutive naturals, for example, 225 + ... + 6705.

It is an arithmetic number, because the mean of its divisors is an integer number (1011192).

Almost surely, 2^22456665 is an apocalyptic number.

It is an amenable number.

22456665 is an abundant number, since it is smaller than the sum of its proper divisors (26080551).

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

22456665 is a wasteful number, since it uses less digits than its factorization.

22456665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510 (or 6507 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 22456665 is about 4738.8463786031. The cubic root of 22456665 is about 282.1294486421.

The spelling of 22456665 in words is "twenty-two million, four hundred fifty-six thousand, six hundred sixty-five".