22251617564 has 24 divisors (see below), whose sum is σ = 42485346288. Its totient is φ = 10113184640.

The previous prime is 22251617527. The next prime is 22251617579. The reversal of 22251617564 is 46571615222.

It is a congruent number.

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, 429254 + ... + 478290.

It is an arithmetic number, because the mean of its divisors is an integer number (1770222762).

Almost surely, 2^22251617564 is an apocalyptic number.

It is an amenable number.

22251617564 is a deficient number, since it is larger than the sum of its proper divisors (20233728724).

22251617564 is a wasteful number, since it uses less digits than its factorization.

22251617564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59365 (or 59363 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The spelling of 22251617564 in words is "twenty-two billion, two hundred fifty-one million, six hundred seventeen thousand, five hundred sixty-four".