328112687655 has 32 divisors (see below), whose sum is σ = 587764235520. Its totient is φ = 173657596320.

The previous prime is 328112687647. The next prime is 328112687681. The reversal of 328112687655 is 556786211823.

328112687655 is a `hidden beast` number, since 328 + 1 + 1 + 268 + 7 + 6 + 55 = 666.

It is not a de Polignac number, because 328112687655 - 2³ = 328112687647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9258897 + ... + 9294266.

It is an arithmetic number, because the mean of its divisors is an integer number (18367632360).

Almost surely, 2^328112687655 is an apocalyptic number.

328112687655 is a deficient number, since it is larger than the sum of its proper divisors (259651547865).

328112687655 is a wasteful number, since it uses less digits than its factorization.

328112687655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18553308 (or 18553302 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 328112687655 in words is "three hundred twenty-eight billion, one hundred twelve million, six hundred eighty-seven thousand, six hundred fifty-five".