56166263686 has 8 divisors (see below), whose sum is σ = 90730118304. Its totient is φ = 25922890920.

The previous prime is 56166263663. The next prime is 56166263687. The reversal of 56166263686 is 68636266165.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56166263687) by changing a digit.

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, 1080120430 + ... + 1080120481.

It is an arithmetic number, because the mean of its divisors is an integer number (11341264788).

Almost surely, 2^56166263686 is an apocalyptic number.

56166263686 is a deficient number, since it is larger than the sum of its proper divisors (34563854618).

56166263686 is a wasteful number, since it uses less digits than its factorization.

56166263686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160240926.

The product of its digits is 11197440, while the sum is 55.

The spelling of 56166263686 in words is "fifty-six billion, one hundred sixty-six million, two hundred sixty-three thousand, six hundred eighty-six".