328391385255 has 12 divisors (see below), whose sum is σ = 569211734520. Its totient is φ = 175142072112.

The previous prime is 328391385251. The next prime is 328391385263. The reversal of 328391385255 is 552583193823.

It is a happy number.

328391385255 is a `hidden beast` number, since 3 + 2 + 8 + 3 + 9 + 1 + 385 + 255 = 666.

It is not a de Polignac number, because 328391385255 - 2² = 328391385251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328391385251) 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, 3648793125 + ... + 3648793214.

It is an arithmetic number, because the mean of its divisors is an integer number (47434311210).

Almost surely, 2^328391385255 is an apocalyptic number.

328391385255 is a deficient number, since it is larger than the sum of its proper divisors (240820349265).

328391385255 is a wasteful number, since it uses less digits than its factorization.

328391385255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297586350 (or 7297586347 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 54.

The spelling of 328391385255 in words is "three hundred twenty-eight billion, three hundred ninety-one million, three hundred eighty-five thousand, two hundred fifty-five".