22661656 has 16 divisors (see below), whose sum is σ = 43003800. Its totient is φ = 11193984.

The previous prime is 22661641. The next prime is 22661657. The reversal of 22661656 is 65616622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22661657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16401 + ... + 17728.

Almost surely, 2^22661656 is an apocalyptic number.

It is an amenable number.

22661656 is a deficient number, since it is larger than the sum of its proper divisors (20342144).

22661656 is a wasteful number, since it uses less digits than its factorization.

22661656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34218 (or 34214 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 22661656 is about 4760.4260313548. The cubic root of 22661656 is about 282.9853030862.

The spelling of 22661656 in words is "twenty-two million, six hundred sixty-one thousand, six hundred fifty-six".