22154875872 has 24 divisors (see below), whose sum is σ = 58156549416. Its totient is φ = 7384958592.

The previous prime is 22154875871. The next prime is 22154875877. The reversal of 22154875872 is 27857845122.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154875871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115389883 + ... + 115390074.

It is an arithmetic number, because the mean of its divisors is an integer number (2423189559).

Almost surely, 2^22154875872 is an apocalyptic number.

It is an amenable number.

22154875872 is an abundant number, since it is smaller than the sum of its proper divisors (36001673544).

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

22154875872 is a wasteful number, since it uses less digits than its factorization.

22154875872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230779970 (or 230779962 counting only the distinct ones).

The product of its digits is 2508800, while the sum is 51.

The spelling of 22154875872 in words is "twenty-two billion, one hundred fifty-four million, eight hundred seventy-five thousand, eight hundred seventy-two".