22556997936 has 160 divisors (see below), whose sum is σ = 71506256640. Its totient is φ = 6835337280.

The previous prime is 22556997929. The next prime is 22556997949. The reversal of 22556997936 is 63979965522.

22556997936 is a `hidden beast` number, since 2 + 2 + 556 + 9 + 9 + 79 + 3 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355611 + ... + 414213.

It is an arithmetic number, because the mean of its divisors is an integer number (446914104).

Almost surely, 2^22556997936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22556997936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35753128320).

22556997936 is an abundant number, since it is smaller than the sum of its proper divisors (48949258704).

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

22556997936 is an equidigital number, since it uses as much as digits as its factorization.

22556997936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58643 (or 58619 counting only the distinct ones).

The product of its digits is 55112400, while the sum is 63.

The spelling of 22556997936 in words is "twenty-two billion, five hundred fifty-six million, nine hundred ninety-seven thousand, nine hundred thirty-six".