6666666804 has 72 divisors (see below), whose sum is σ = 19266811200. Its totient is φ = 1904015232.

The previous prime is 6666666791. The next prime is 6666666823. The reversal of 6666666804 is 4086666666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1136872 + ... + 1142720.

It is an arithmetic number, because the mean of its divisors is an integer number (267594600).

Almost surely, 2^6666666804 is an apocalyptic number.

It is an amenable number.

6666666804 is an abundant number, since it is smaller than the sum of its proper divisors (12600144396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6666666804 is a wasteful number, since it uses less digits than its factorization.

6666666804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10389 (or 10384 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 54.

The square root of 6666666804 is about 81649.6589337641. The cubic root of 6666666804 is about 1882.0720706856.

The spelling of 6666666804 in words is "six billion, six hundred sixty-six million, six hundred sixty-six thousand, eight hundred four".