22664252880 has 60 divisors (see below), whose sum is σ = 76114118340. Its totient is φ = 6043800576.

The previous prime is 22664252873. The next prime is 22664252917. The reversal of 22664252880 is 8825246622.

22664252880 is a `hidden beast` number, since 2 + 2 + 6 + 6 + 42 + 528 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3049690176 + 19614562704 = 55224^2 + 140052^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15738345 + ... + 15739784.

It is an arithmetic number, because the mean of its divisors is an integer number (1268568639).

Almost surely, 2^22664252880 is an apocalyptic number.

22664252880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22664252880 is an abundant number, since it is smaller than the sum of its proper divisors (53449865460).

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

22664252880 is a wasteful number, since it uses less digits than its factorization.

22664252880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31478148 (or 31478139 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 22664252880 in words is "twenty-two billion, six hundred sixty-four million, two hundred fifty-two thousand, eight hundred eighty".