6666790111679 has 8 divisors (see below), whose sum is σ = 6671696159232. Its totient is φ = 6661885145760.

The previous prime is 6666790111643. The next prime is 6666790111741. The reversal of 6666790111679 is 9761110976666.

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-6666790111679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666790111979) 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, 12274877 + ... + 12806489.

It is an arithmetic number, because the mean of its divisors is an integer number (833962019904).

Almost surely, 2^{6666790111679} is an apocalyptic number.

6666790111679 is a deficient number, since it is larger than the sum of its proper divisors (4906047553).

6666790111679 is a wasteful number, since it uses less digits than its factorization.

6666790111679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540817.

The product of its (nonzero) digits is 30862944, while the sum is 65.

The spelling of 6666790111679 in words is "six trillion, six hundred sixty-six billion, seven hundred ninety million, one hundred eleven thousand, six hundred seventy-nine".