325628162172 has 18 divisors (see below), whose sum is σ = 823115632248. Its totient is φ = 108542720712.

The previous prime is 325628162161. The next prime is 325628162203. The reversal of 325628162172 is 271261826523.

325628162172 is a `hidden beast` number, since 3 + 2 + 5 + 628 + 1 + 6 + 2 + 17 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4522613328 + ... + 4522613399.

It is an arithmetic number, because the mean of its divisors is an integer number (45728646236).

Almost surely, 2^325628162172 is an apocalyptic number.

It is an amenable number.

325628162172 is an abundant number, since it is smaller than the sum of its proper divisors (497487470076).

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

325628162172 is a wasteful number, since it uses less digits than its factorization.

325628162172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9045226737 (or 9045226732 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

Adding to 325628162172 its reverse (271261826523), we get a palindrome (596889988695).

The spelling of 325628162172 in words is "three hundred twenty-five billion, six hundred twenty-eight million, one hundred sixty-two thousand, one hundred seventy-two".