6666588306659 has 8 divisors (see below), whose sum is σ = 6808467555840. Its totient is φ = 6524710596936.

The previous prime is 6666588306641. The next prime is 6666588306689. The reversal of 6666588306659 is 9566038856666.

6666588306659 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6666588306659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6666588306619) 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, 14136812 + ... + 14600774.

It is an arithmetic number, because the mean of its divisors is an integer number (851058444480).

Almost surely, 2^{6666588306659} is an apocalyptic number.

6666588306659 is a deficient number, since it is larger than the sum of its proper divisors (141879249181).

6666588306659 is a wasteful number, since it uses less digits than its factorization.

6666588306659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769729.

The product of its (nonzero) digits is 2015539200, while the sum is 74.

The spelling of 6666588306659 in words is "six trillion, six hundred sixty-six billion, five hundred eighty-eight million, three hundred six thousand, six hundred fifty-nine".