6664446502408 has 16 divisors (see below), whose sum is σ = 13153512834000. Its totient is φ = 3156843080016.

The previous prime is 6664446502397. The next prime is 6664446502453. The reversal of 6664446502408 is 8042056444666.

It is a happy number.

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, 21922521238 + ... + 21922521541.

It is an arithmetic number, because the mean of its divisors is an integer number (822094552125).

Almost surely, 2^{6664446502408} is an apocalyptic number.

It is an amenable number.

6664446502408 is a deficient number, since it is larger than the sum of its proper divisors (6489066331592).

6664446502408 is a wasteful number, since it uses less digits than its factorization.

6664446502408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43845042804 (or 43845042800 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 55.

The spelling of 6664446502408 in words is "six trillion, six hundred sixty-four billion, four hundred forty-six million, five hundred two thousand, four hundred eight".