325204640856 has 32 divisors (see below), whose sum is σ = 903346225200. Its totient is φ = 108401546880.

The previous prime is 325204640833. The next prime is 325204640867. The reversal of 325204640856 is 658046402523.

325204640856 is a `hidden beast` number, since 3 + 2 + 520 + 4 + 6 + 40 + 85 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752788305 + ... + 752788736.

Almost surely, 2^325204640856 is an apocalyptic number.

325204640856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

325204640856 is an abundant number, since it is smaller than the sum of its proper divisors (578141584344).

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

325204640856 is a wasteful number, since it uses less digits than its factorization.

325204640856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505577056 (or 1505577046 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 325204640856 in words is "three hundred twenty-five billion, two hundred four million, six hundred forty thousand, eight hundred fifty-six".