22971557504 has 96 divisors (see below), whose sum is σ = 54952997760. Its totient is φ = 9527293440.

The previous prime is 22971557461. The next prime is 22971557507. The reversal of 22971557504 is 40575517922.

It is not an unprimeable number, because it can be changed into a prime (22971557507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135359 + ... + 253505.

It is an arithmetic number, because the mean of its divisors is an integer number (572427060).

Almost surely, 2^22971557504 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 22971557504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27476498880).

22971557504 is an abundant number, since it is smaller than the sum of its proper divisors (31981440256).

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

22971557504 is a wasteful number, since it uses less digits than its factorization.

22971557504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118206 (or 118187 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 22971557504 in words is "twenty-two billion, nine hundred seventy-one million, five hundred fifty-seven thousand, five hundred four".