6664659713 has 8 divisors (see below), whose sum is σ = 6956951040. Its totient is φ = 6377199840.

The previous prime is 6664659707. The next prime is 6664659731. The reversal of 6664659713 is 3179564666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6664659713 - 2⁶ = 6664659649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6664653713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205045 + ... + 1210562.

It is an arithmetic number, because the mean of its divisors is an integer number (869618880).

Almost surely, 2^6664659713 is an apocalyptic number.

It is an amenable number.

6664659713 is a deficient number, since it is larger than the sum of its proper divisors (292291327).

6664659713 is a wasteful number, since it uses less digits than its factorization.

6664659713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415727.

The product of its digits is 4898880, while the sum is 53.

The square root of 6664659713 is about 81637.3671366244. The cubic root of 6664659713 is about 1881.8831772362.

The spelling of 6664659713 in words is "six billion, six hundred sixty-four million, six hundred fifty-nine thousand, seven hundred thirteen".