22521450696 has 64 divisors (see below), whose sum is σ = 57394656000. Its totient is φ = 7361822208.

The previous prime is 22521450659. The next prime is 22521450737. The reversal of 22521450696 is 69605412522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3875425 + ... + 3881231.

It is an arithmetic number, because the mean of its divisors is an integer number (896791500).

Almost surely, 2^22521450696 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 22521450696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28697328000).

22521450696 is an abundant number, since it is smaller than the sum of its proper divisors (34873205304).

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

22521450696 is a wasteful number, since it uses less digits than its factorization.

22521450696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8918 (or 8914 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 22521450696 in words is "twenty-two billion, five hundred twenty-one million, four hundred fifty thousand, six hundred ninety-six".