22656663 has 6 divisors (see below), whose sum is σ = 32726304. Its totient is φ = 15104436.

The previous prime is 22656659. The next prime is 22656703. The reversal of 22656663 is 36665622.

It is not a de Polignac number, because 22656663 - 2² = 22656659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22651663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1258695 + ... + 1258712.

It is an arithmetic number, because the mean of its divisors is an integer number (5454384).

Almost surely, 2^22656663 is an apocalyptic number.

22656663 is a deficient number, since it is larger than the sum of its proper divisors (10069641).

22656663 is a wasteful number, since it uses less digits than its factorization.

22656663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517413 (or 2517410 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 22656663 is about 4759.9015746127. The cubic root of 22656663 is about 282.9645183533.

The spelling of 22656663 in words is "twenty-two million, six hundred fifty-six thousand, six hundred sixty-three".