66568466486566 has 16 divisors (see below), whose sum is σ = 111247882099200. Its totient is φ = 29614598243080.

The previous prime is 66568466486531. The next prime is 66568466486581.

66568466486566 is nontrivially palindromic in base 10.

66568466486566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66568466486566.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 32189779666 + ... + 32189781733.

It is an arithmetic number, because the mean of its divisors is an integer number (6952992631200).

Almost surely, 2^{66568466486566} is an apocalyptic number.

66568466486566 is a deficient number, since it is larger than the sum of its proper divisors (44679415612634).

66568466486566 is a wasteful number, since it uses less digits than its factorization.

66568466486566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64379561459.

The product of its digits is 42998169600, while the sum is 82.

The spelling of 66568466486566 in words is "sixty-six trillion, five hundred sixty-eight billion, four hundred sixty-six million, four hundred eighty-six thousand, five hundred sixty-six".