328395568680 has 160 divisors (see below), whose sum is σ = 1104058909800. Its totient is φ = 87549548544.

The previous prime is 328395568679. The next prime is 328395568687. The reversal of 328395568680 is 86865593823.

328395568680 is a `hidden beast` number, since 3 + 2 + 8 + 3 + 9 + 5 + 568 + 68 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 85167083556 + 243228485124 = 291834^2 + 493182^2 .

It is a super-3 number, since 3×328395568680³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (328395568687) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15311244 + ... + 15332676.

Almost surely, 2^328395568680 is an apocalyptic number.

328395568680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328395568680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552029454900).

328395568680 is an abundant number, since it is smaller than the sum of its proper divisors (775663341120).

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

328395568680 is a wasteful number, since it uses less digits than its factorization.

328395568680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26185 (or 26172 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 63.

The spelling of 328395568680 in words is "three hundred twenty-eight billion, three hundred ninety-five million, five hundred sixty-eight thousand, six hundred eighty".