22186742208 has 56 divisors (see below), whose sum is σ = 58760886288. Its totient is φ = 7388215296.

The previous prime is 22186742183. The next prime is 22186742219. The reversal of 22186742208 is 80224768122.

It is a self number, because there is not a number n which added to its sum of digits gives 22186742208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137460 + ... + 251532.

Almost surely, 2^22186742208 is an apocalyptic number.

It is an amenable number.

22186742208 is an abundant number, since it is smaller than the sum of its proper divisors (36574144080).

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

22186742208 is a wasteful number, since it uses less digits than its factorization.

22186742208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115101 (or 115091 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 22186742208 in words is "twenty-two billion, one hundred eighty-six million, seven hundred forty-two thousand, two hundred eight".