22118675920 has 40 divisors (see below), whose sum is σ = 56101007520. Its totient is φ = 8043154560.

The previous prime is 22118675819. The next prime is 22118675921. The reversal of 22118675920 is 2957681122.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22118675921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12566550 + ... + 12568309.

It is an arithmetic number, because the mean of its divisors is an integer number (1402525188).

Almost surely, 2^22118675920 is an apocalyptic number.

22118675920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22118675920 is an abundant number, since it is smaller than the sum of its proper divisors (33982331600).

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

22118675920 is a wasteful number, since it uses less digits than its factorization.

22118675920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25134883 (or 25134877 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 22118675920 in words is "twenty-two billion, one hundred eighteen million, six hundred seventy-five thousand, nine hundred twenty".