6665166696 has 16 divisors (see below), whose sum is σ = 16662916800. Its totient is φ = 2221722224.

The previous prime is 6665166671. The next prime is 6665166707. The reversal of 6665166696 is 6966615666.

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 in 3 ways as a sum of consecutive naturals, for example, 138857616 + ... + 138857663.

It is an arithmetic number, because the mean of its divisors is an integer number (1041432300).

Almost surely, 2^6665166696 is an apocalyptic number.

It is an amenable number.

6665166696 is an abundant number, since it is smaller than the sum of its proper divisors (9997750104).

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

6665166696 is a wasteful number, since it uses less digits than its factorization.

6665166696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277715288 (or 277715284 counting only the distinct ones).

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

The square root of 6665166696 is about 81640.4721691392. The cubic root of 6665166696 is about 1881.9308945305.

The spelling of 6665166696 in words is "six billion, six hundred sixty-five million, one hundred sixty-six thousand, six hundred ninety-six".