22152599072 has 54 divisors (see below), whose sum is σ = 44284414293. Its totient is φ = 10908330112.

The previous prime is 22152599059. The next prime is 22152599087. The reversal of 22152599072 is 27099525122.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 16168648336 + 5983950736 = 127156^2 + 77356^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105244.

It is a super-2 number, since 2×22152599072² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 69881858 + ... + 69882174.

Almost surely, 2^22152599072 is an apocalyptic number.

It is an amenable number.

22152599072 is a deficient number, since it is larger than the sum of its proper divisors (22131815221).

22152599072 is an frugal number, since it uses more digits than its factorization.

22152599072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 22152599072 in words is "twenty-two billion, one hundred fifty-two million, five hundred ninety-nine thousand, seventy-two".