22352065172 has 24 divisors (see below), whose sum is σ = 40472884200. Its totient is φ = 10788535296.

The previous prime is 22352065163. The next prime is 22352065189. The reversal of 22352065172 is 27156025322.

It can be written as a sum of positive squares in 4 ways, for example, as 14216746756 + 8135318416 = 119234^2 + 90196^2 .

It is a super-2 number, since 2×22352065172² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688604 + ... + 720332.

It is an arithmetic number, because the mean of its divisors is an integer number (1686370175).

Almost surely, 2^22352065172 is an apocalyptic number.

It is an amenable number.

22352065172 is a deficient number, since it is larger than the sum of its proper divisors (18120819028).

22352065172 is a wasteful number, since it uses less digits than its factorization.

22352065172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37835 (or 37833 counting only the distinct ones).

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

The spelling of 22352065172 in words is "twenty-two billion, three hundred fifty-two million, sixty-five thousand, one hundred seventy-two".