22756435720 has 32 divisors (see below), whose sum is σ = 52967568600. Its totient is φ = 8788691968.

The previous prime is 22756435657. The next prime is 22756435747. The reversal of 22756435720 is 2753465722.

It can be written as a sum of positive squares in 4 ways, for example, as 21843066436 + 913369284 = 147794^2 + 30222^2 .

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, 9807649 + ... + 9809968.

Almost surely, 2^22756435720 is an apocalyptic number.

22756435720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22756435720 is an abundant number, since it is smaller than the sum of its proper divisors (30211132880).

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

22756435720 is a wasteful number, since it uses less digits than its factorization.

22756435720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19617657 (or 19617653 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 22756435720 in words is "twenty-two billion, seven hundred fifty-six million, four hundred thirty-five thousand, seven hundred twenty".