22663666 has 16 divisors (see below), whose sum is σ = 35912448. Its totient is φ = 10710000.

The previous prime is 22663657. The next prime is 22663673. The reversal of 22663666 is 66636622.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585 + ... + 6916.

It is an arithmetic number, because the mean of its divisors is an integer number (2244528).

Almost surely, 2^22663666 is an apocalyptic number.

22663666 is a deficient number, since it is larger than the sum of its proper divisors (13248782).

22663666 is a wasteful number, since it uses less digits than its factorization.

22663666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577.

The product of its digits is 93312, while the sum is 37.

The square root of 22663666 is about 4760.6371422321. The cubic root of 22663666 is about 282.9936694010.

The spelling of 22663666 in words is "twenty-two million, six hundred sixty-three thousand, six hundred sixty-six".