325731165900 has 144 divisors (see below), whose sum is σ = 1092255091200. Its totient is φ = 73404172800.

The previous prime is 325731165871. The next prime is 325731165917. The reversal of 325731165900 is 9561137523.

It is a super-2 number, since 2×325731165900² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 943225 + ... + 1241424.

It is an arithmetic number, because the mean of its divisors is an integer number (7585104800).

Almost surely, 2^325731165900 is an apocalyptic number.

325731165900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

325731165900 is an abundant number, since it is smaller than the sum of its proper divisors (766523925300).

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

325731165900 is a wasteful number, since it uses less digits than its factorization.

325731165900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184744 (or 2184737 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The spelling of 325731165900 in words is "three hundred twenty-five billion, seven hundred thirty-one million, one hundred sixty-five thousand, nine hundred".