328388056605 has 64 divisors (see below), whose sum is σ = 674697945600. Its totient is φ = 148433472000.

The previous prime is 328388056571. The next prime is 328388056609. The reversal of 328388056605 is 506650883823.

328388056605 is a `hidden beast` number, since 3 + 28 + 3 + 8 + 8 + 0 + 5 + 6 + 605 = 666.

It is not a de Polignac number, because 328388056605 - 2²⁰ = 328387008029 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328388056609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1868146 + ... + 2036355.

It is an arithmetic number, because the mean of its divisors is an integer number (10542155400).

Almost surely, 2^328388056605 is an apocalyptic number.

328388056605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

328388056605 is an abundant number, since it is smaller than the sum of its proper divisors (346309888995).

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

328388056605 is a wasteful number, since it uses less digits than its factorization.

328388056605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904611 (or 3904605 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 328388056605 in words is "three hundred twenty-eight billion, three hundred eighty-eight million, fifty-six thousand, six hundred five".