328057518656 has 28 divisors (see below), whose sum is σ = 743987587968. Its totient is φ = 140596079232.

The previous prime is 328057518643. The next prime is 328057518707. The reversal of 328057518656 is 656815750823.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-3 number, since 3×328057518656³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366135176 + ... + 366136071.

Almost surely, 2^328057518656 is an apocalyptic number.

It is an amenable number.

328057518656 is an abundant number, since it is smaller than the sum of its proper divisors (415930069312).

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

328057518656 is an equidigital number, since it uses as much as digits as its factorization.

328057518656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732271266 (or 732271256 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 328057518656 in words is "three hundred twenty-eight billion, fifty-seven million, five hundred eighteen thousand, six hundred fifty-six".