22561999032 has 32 divisors (see below), whose sum is σ = 56585224080. Its totient is φ = 7496636160.

The previous prime is 22561999013. The next prime is 22561999037. The reversal of 22561999032 is 23099916522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22561999037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494219 + ... + 1509242.

Almost surely, 2^22561999032 is an apocalyptic number.

It is an amenable number.

22561999032 is an abundant number, since it is smaller than the sum of its proper divisors (34023225048).

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

22561999032 is a wasteful number, since it uses less digits than its factorization.

22561999032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003783 (or 3003779 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 22561999032 in words is "twenty-two billion, five hundred sixty-one million, nine hundred ninety-nine thousand, thirty-two".