22064288664 has 32 divisors (see below), whose sum is σ = 60175333440. Its totient is φ = 6686148000.

The previous prime is 22064288633. The next prime is 22064288671. The reversal of 22064288664 is 46688246022.

It is a happy number.

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, 41788162 + ... + 41788689.

It is an arithmetic number, because the mean of its divisors is an integer number (1880479170).

Almost surely, 2^22064288664 is an apocalyptic number.

22064288664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22064288664 is an abundant number, since it is smaller than the sum of its proper divisors (38111044776).

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

22064288664 is a wasteful number, since it uses less digits than its factorization.

22064288664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83576871 (or 83576867 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 22064288664 in words is "twenty-two billion, sixty-four million, two hundred eighty-eight thousand, six hundred sixty-four".