325616087664 has 60 divisors (see below), whose sum is σ = 1041454632816. Its totient is φ = 93033167616.

The previous prime is 325616087663. The next prime is 325616087681. The reversal of 325616087664 is 466780616523.

325616087664 is a `hidden beast` number, since 3 + 2 + 561 + 6 + 0 + 8 + 76 + 6 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 325616087664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325616087663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161514909 + ... + 161516924.

Almost surely, 2^325616087664 is an apocalyptic number.

It is an amenable number.

325616087664 is an abundant number, since it is smaller than the sum of its proper divisors (715838545152).

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

325616087664 is a wasteful number, since it uses less digits than its factorization.

325616087664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323031854 (or 323031845 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 325616087664 in words is "three hundred twenty-five billion, six hundred sixteen million, eighty-seven thousand, six hundred sixty-four".