6664028646880 has 96 divisors (see below), whose sum is σ = 17175860563680. Its totient is φ = 2423164446720.

The previous prime is 6664028646871. The next prime is 6664028646907. The reversal of 6664028646880 is 886468204666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41027266 + ... + 41189374.

It is an arithmetic number, because the mean of its divisors is an integer number (178915214205).

Almost surely, 2^{6664028646880} is an apocalyptic number.

It is an amenable number.

6664028646880 is an abundant number, since it is smaller than the sum of its proper divisors (10511831916800).

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

6664028646880 is a wasteful number, since it uses less digits than its factorization.

6664028646880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185492 (or 185484 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 64.

The spelling of 6664028646880 in words is "six trillion, six hundred sixty-four billion, twenty-eight million, six hundred forty-six thousand, eight hundred eighty".