22128836652 has 72 divisors (see below), whose sum is σ = 61260697680. Its totient is φ = 6693459840.

The previous prime is 22128836603. The next prime is 22128836663. The reversal of 22128836652 is 25663882122.

22128836652 is a `hidden beast` number, since 2 + 2 + 1 + 288 + 366 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 22128836598 and 22128836607.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373099 + ... + 428322.

Almost surely, 2^22128836652 is an apocalyptic number.

It is an amenable number.

22128836652 is an abundant number, since it is smaller than the sum of its proper divisors (39131861028).

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

22128836652 is a wasteful number, since it uses less digits than its factorization.

22128836652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801503 (or 801498 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 22128836652 in words is "twenty-two billion, one hundred twenty-eight million, eight hundred thirty-six thousand, six hundred fifty-two".