6665166695 has 8 divisors (see below), whose sum is σ = 8725309200. Its totient is φ = 4847393920.

The previous prime is 6665166671. The next prime is 6665166707. The reversal of 6665166695 is 5966615666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6665166695 - 2¹⁴ = 6665150311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6665166695.

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, 60592370 + ... + 60592479.

It is an arithmetic number, because the mean of its divisors is an integer number (1090663650).

Almost surely, 2^6665166695 is an apocalyptic number.

6665166695 is a deficient number, since it is larger than the sum of its proper divisors (2060142505).

6665166695 is a wasteful number, since it uses less digits than its factorization.

6665166695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121184865.

The product of its digits is 10497600, while the sum is 56.

The square root of 6665166695 is about 81640.4721630148. The cubic root of 6665166695 is about 1881.9308944364.

The spelling of 6665166695 in words is "six billion, six hundred sixty-five million, one hundred sixty-six thousand, six hundred ninety-five".