22118675860 has 24 divisors (see below), whose sum is σ = 49181527080. Its totient is φ = 8327030784.

The previous prime is 22118675819. The next prime is 22118675921. The reversal of 22118675860 is 6857681122.

It can be written as a sum of positive squares in 4 ways, for example, as 2013137424 + 20105538436 = 44868^2 + 141794^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22118675860.

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, 32527125 + ... + 32527804.

It is an arithmetic number, because the mean of its divisors is an integer number (2049230295).

Almost surely, 2^22118675860 is an apocalyptic number.

22118675860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22118675860 is an abundant number, since it is smaller than the sum of its proper divisors (27062851220).

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

22118675860 is a wasteful number, since it uses less digits than its factorization.

22118675860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65054955 (or 65054953 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 22118675860 in words is "twenty-two billion, one hundred eighteen million, six hundred seventy-five thousand, eight hundred sixty".