6916566666 has 16 divisors (see below), whose sum is σ = 13842478944. Its totient is φ = 2303964624.

The previous prime is 6916566649. The next prime is 6916566677. The reversal of 6916566666 is 6666656196.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379761 + ... + 397556.

It is an arithmetic number, because the mean of its divisors is an integer number (865154934).

Almost surely, 2^6916566666 is an apocalyptic number.

6916566666 is an abundant number, since it is smaller than the sum of its proper divisors (6925912278).

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

6916566666 is a wasteful number, since it uses less digits than its factorization.

6916566666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778805.

The product of its digits is 12597120, while the sum is 57.

The square root of 6916566666 is about 83165.8984560379. The cubic root of 6916566666 is about 1905.3006798694.

The spelling of 6916566666 in words is "six billion, nine hundred sixteen million, five hundred sixty-six thousand, six hundred sixty-six".