56866186266 has 8 divisors (see below), whose sum is σ = 113732372544. Its totient is φ = 18955395420.

The previous prime is 56866186259. The next prime is 56866186291. The reversal of 56866186266 is 66268166865.

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

56866186266 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 4738848850 + ... + 4738848861.

It is an arithmetic number, because the mean of its divisors is an integer number (14216546568).

Almost surely, 2^56866186266 is an apocalyptic number.

56866186266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56866186266 is a wasteful number, since it uses less digits than its factorization.

56866186266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9477697716.

The product of its digits is 29859840, while the sum is 60.

The spelling of 56866186266 in words is "fifty-six billion, eight hundred sixty-six million, one hundred eighty-six thousand, two hundred sixty-six".