6566172056105 has 16 divisors (see below), whose sum is σ = 8342975479680. Its totient is φ = 4943897156352.

The previous prime is 6566172056099. The next prime is 6566172056123. The reversal of 6566172056105 is 5016502716656.

It is a cyclic number.

It is not a de Polignac number, because 6566172056105 - 2¹² = 6566172052009 is a prime.

It is a super-2 number, since 2×6566172056105² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11678636 + ... + 12227954.

It is an arithmetic number, because the mean of its divisors is an integer number (521435967480).

Almost surely, 2^{6566172056105} is an apocalyptic number.

It is an amenable number.

6566172056105 is a deficient number, since it is larger than the sum of its proper divisors (1776803423575).

6566172056105 is a wasteful number, since it uses less digits than its factorization.

6566172056105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689968.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 6566172056105 in words is "six trillion, five hundred sixty-six billion, one hundred seventy-two million, fifty-six thousand, one hundred five".