327680378660 has 12 divisors (see below), whose sum is σ = 688128795228. Its totient is φ = 131072151456.

The previous prime is 327680378659. The next prime is 327680378693. The reversal of 327680378660 is 66873086723.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 254145040384 + 73535338276 = 504128^2 + 271174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 327680378596 and 327680378605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8192009447 + ... + 8192009486.

It is an arithmetic number, because the mean of its divisors is an integer number (57344066269).

Almost surely, 2^327680378660 is an apocalyptic number.

It is an amenable number.

327680378660 is an abundant number, since it is smaller than the sum of its proper divisors (360448416568).

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

327680378660 is a wasteful number, since it uses less digits than its factorization.

327680378660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16384018942 (or 16384018940 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 327680378660 in words is "three hundred twenty-seven billion, six hundred eighty million, three hundred seventy-eight thousand, six hundred sixty".