6666845264 has 40 divisors (see below), whose sum is σ = 13370052000. Its totient is φ = 3216640896.

The previous prime is 6666845209. The next prime is 6666845287. The reversal of 6666845264 is 4625486666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175267 + ... + 1180925.

It is an arithmetic number, because the mean of its divisors is an integer number (334251300).

Almost surely, 2^6666845264 is an apocalyptic number.

It is an amenable number.

6666845264 is an abundant number, since it is smaller than the sum of its proper divisors (6703206736).

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

6666845264 is a wasteful number, since it uses less digits than its factorization.

6666845264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8235 (or 8229 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 53.

The square root of 6666845264 is about 81650.7517662881. The cubic root of 6666845264 is about 1882.0888642645.

The spelling of 6666845264 in words is "six billion, six hundred sixty-six million, eight hundred forty-five thousand, two hundred sixty-four".