22649795856 has 80 divisors (see below), whose sum is σ = 67110545920. Its totient is φ = 7306381440.

The previous prime is 22649795843. The next prime is 22649795863. The reversal of 22649795856 is 65859794622.

22649795856 is a `hidden beast` number, since 2 + 2 + 6 + 49 + 7 + 9 + 585 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 22649795793 and 22649795802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832255 + ... + 859038.

It is an arithmetic number, because the mean of its divisors is an integer number (838881824).

Almost surely, 2^22649795856 is an apocalyptic number.

It is an amenable number.

22649795856 is an abundant number, since it is smaller than the sum of its proper divisors (44460750064).

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

22649795856 is a wasteful number, since it uses less digits than its factorization.

22649795856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691341 (or 1691329 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 22649795856 in words is "twenty-two billion, six hundred forty-nine million, seven hundred ninety-five thousand, eight hundred fifty-six".