22909985568 has 126 divisors (see below), whose sum is σ = 67693423707. Its totient is φ = 7628955840.

The previous prime is 22909985557. The next prime is 22909985591. The reversal of 22909985568 is 86558990922.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 11454992784 + 11454992784 = 107028^2 + 107028^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=107028.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 23117553 + ... + 23118543.

Almost surely, 2^22909985568 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 22909985568

22909985568 is an abundant number, since it is smaller than the sum of its proper divisors (44783438139).

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

22909985568 is an frugal number, since it uses more digits than its factorization.

22909985568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 22909985568 in words is "twenty-two billion, nine hundred nine million, nine hundred eighty-five thousand, five hundred sixty-eight".