22420564136 has 32 divisors (see below), whose sum is σ = 43210872360. Its totient is φ = 10901409792.

The previous prime is 22420564097. The next prime is 22420564163. The reversal of 22420564136 is 63146502422.

It can be written as a sum of positive squares in 4 ways, for example, as 16901560036 + 5519004100 = 130006^2 + 74290^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22420564096 and 22420564105.

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, 186065 + ... + 281888.

Almost surely, 2^22420564136 is an apocalyptic number.

It is an amenable number.

22420564136 is a deficient number, since it is larger than the sum of its proper divisors (20790308224).

22420564136 is a wasteful number, since it uses less digits than its factorization.

22420564136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468125 (or 468121 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 22420564136 in words is "twenty-two billion, four hundred twenty million, five hundred sixty-four thousand, one hundred thirty-six".