6660666683311 has 4 divisors (see below), whose sum is σ = 6667836400800. Its totient is φ = 6653496965824.

The previous prime is 6660666683309. The next prime is 6660666683327. The reversal of 6660666683311 is 1133866660666.

6660666683311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6660666683311 - 2¹ = 6660666683309 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 (6660666683351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3584857351 + ... + 3584859208.

It is an arithmetic number, because the mean of its divisors is an integer number (1666959100200).

Almost surely, 2^{6660666683311} is an apocalyptic number.

6660666683311 is a deficient number, since it is larger than the sum of its proper divisors (7169717489).

6660666683311 is an equidigital number, since it uses as much as digits as its factorization.

6660666683311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7169717488.

The product of its (nonzero) digits is 20155392, while the sum is 58.

The spelling of 6660666683311 in words is "six trillion, six hundred sixty billion, six hundred sixty-six million, six hundred eighty-three thousand, three hundred eleven".