325646505560 has 64 divisors (see below), whose sum is σ = 764718667200. Its totient is φ = 124569550336.

The previous prime is 325646505467. The next prime is 325646505581. The reversal of 325646505560 is 65505646523.

It is a super-2 number, since 2×325646505560² (a number of 24 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 15 ways as a sum of consecutive naturals, for example, 4784246 + ... + 4851834.

It is an arithmetic number, because the mean of its divisors is an integer number (11948729175).

Almost surely, 2^325646505560 is an apocalyptic number.

It is an amenable number.

325646505560 is an abundant number, since it is smaller than the sum of its proper divisors (439072161640).

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

325646505560 is a wasteful number, since it uses less digits than its factorization.

325646505560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72860 (or 72856 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 325646505560 in words is "three hundred twenty-five billion, six hundred forty-six million, five hundred five thousand, five hundred sixty".