22165253072 has 20 divisors (see below), whose sum is σ = 45471365316. Its totient is φ = 10430707200.

The previous prime is 22165253023. The next prime is 22165253081. The reversal of 22165253072 is 27035256122.

It can be written as a sum of positive squares in 2 ways, for example, as 10197768256 + 11967484816 = 100984^2 + 109396^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40744679 + ... + 40745222.

Almost surely, 2^22165253072 is an apocalyptic number.

It is an amenable number.

22165253072 is an abundant number, since it is smaller than the sum of its proper divisors (23306112244).

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

22165253072 is a wasteful number, since it uses less digits than its factorization.

22165253072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81489926 (or 81489920 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 22165253072 in words is "twenty-two billion, one hundred sixty-five million, two hundred fifty-three thousand, seventy-two".