22557422508 has 12 divisors (see below), whose sum is σ = 52633985880. Its totient is φ = 7519140832.

The previous prime is 22557422507. The next prime is 22557422539. The reversal of 22557422508 is 80522475522.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 22557422508.

It is not an unprimeable number, because it can be changed into a prime (22557422507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939892593 + ... + 939892616.

It is an arithmetic number, because the mean of its divisors is an integer number (4386165490).

Almost surely, 2^22557422508 is an apocalyptic number.

It is an amenable number.

22557422508 is an abundant number, since it is smaller than the sum of its proper divisors (30076563372).

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

22557422508 is a wasteful number, since it uses less digits than its factorization.

22557422508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879785216 (or 1879785214 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 42.

The spelling of 22557422508 in words is "twenty-two billion, five hundred fifty-seven million, four hundred twenty-two thousand, five hundred eight".