56171853606 has 32 divisors (see below), whose sum is σ = 123746658048. Its totient is φ = 16856511840.

The previous prime is 56171853581. The next prime is 56171853607. The reversal of 56171853606 is 60635817165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56171853607) 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 15 ways as a sum of consecutive naturals, for example, 4124701 + ... + 4138296.

It is an arithmetic number, because the mean of its divisors is an integer number (3867083064).

Almost surely, 2^56171853606 is an apocalyptic number.

56171853606 is an abundant number, since it is smaller than the sum of its proper divisors (67574804442).

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

56171853606 is a wasteful number, since it uses less digits than its factorization.

56171853606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8263116.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 56171853606 in words is "fifty-six billion, one hundred seventy-one million, eight hundred fifty-three thousand, six hundred six".