22117682008656 has 100 divisors (see below), whose sum is σ = 68939218535572. Its totient is φ = 6805440612864.

The previous prime is 22117682008619. The next prime is 22117682008663. The reversal of 22117682008656 is 65680028671122.

It can be written as a sum of positive squares in 2 ways, for example, as 4488465960000 + 17629216048656 = 2118600^2 + 4198716^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 656372101 + ... + 656405796.

Almost surely, 2^{22117682008656} is an apocalyptic number.

22117682008656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22117682008656 is an abundant number, since it is smaller than the sum of its proper divisors (46821536526916).

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

22117682008656 is a wasteful number, since it uses less digits than its factorization.

22117682008656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312777930 (or 1312777915 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 22117682008656 in words is "twenty-two trillion, one hundred seventeen billion, six hundred eighty-two million, eight thousand, six hundred fifty-six".