22565801682 has 18 divisors (see below), whose sum is σ = 48893951223. Its totient is φ = 7521721452.

The previous prime is 22565801651. The next prime is 22565801719. The reversal of 22565801682 is 28610856522.

It is a happy number.

22565801682 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 580 + 1 + 68 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11282900841 + 11282900841 = 106221^2 + 106221^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106221.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 619623 + ... + 655029.

Almost surely, 2^22565801682 is an apocalyptic number.

22565801682 is an abundant number, since it is smaller than the sum of its proper divisors (26328149541).

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

22565801682 is an frugal number, since it uses more digits than its factorization.

22565801682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70822 (or 35412 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 22565801682 in words is "twenty-two billion, five hundred sixty-five million, eight hundred one thousand, six hundred eighty-two".