7666685164 has 6 divisors (see below), whose sum is σ = 13416699044. Its totient is φ = 3833342580.

The previous prime is 7666685111. The next prime is 7666685189. The reversal of 7666685164 is 4615866667.

It is a super-2 number, since 2×7666685164² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958335642 + ... + 958335649.

Almost surely, 2^7666685164 is an apocalyptic number.

It is an amenable number.

7666685164 is a deficient number, since it is larger than the sum of its proper divisors (5750013880).

7666685164 is a wasteful number, since it uses less digits than its factorization.

7666685164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916671295 (or 1916671293 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 55.

The square root of 7666685164 is about 87559.6092042444. The cubic root of 7666685164 is about 1971.8288190386.

The spelling of 7666685164 in words is "seven billion, six hundred sixty-six million, six hundred eighty-five thousand, one hundred sixty-four".