22173572944 has 20 divisors (see below), whose sum is σ = 42965476596. Its totient is φ = 11085708032.

The previous prime is 22173572933. The next prime is 22173572963. The reversal of 22173572944 is 44927537122.

It can be written as a sum of positive squares in 2 ways, for example, as 3999297600 + 18174275344 = 63240^2 + 134812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22173572894 and 22173572903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117612 + ... + 241204.

Almost surely, 2^22173572944 is an apocalyptic number.

It is an amenable number.

22173572944 is a deficient number, since it is larger than the sum of its proper divisors (20791903652).

22173572944 is a wasteful number, since it uses less digits than its factorization.

22173572944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134814 (or 134808 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The spelling of 22173572944 in words is "twenty-two billion, one hundred seventy-three million, five hundred seventy-two thousand, nine hundred forty-four".