56171853611 has 16 divisors (see below), whose sum is σ = 60876684000. Its totient is φ = 51623351808.

The previous prime is 56171853607. The next prime is 56171853629. The reversal of 56171853611 is 11635817165.

56171853611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 56171853611 - 2² = 56171853607 is a prime.

It is a super-2 number, since 2×56171853611² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56171853641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3170285 + ... + 3187953.

It is an arithmetic number, because the mean of its divisors is an integer number (3804792750).

Almost surely, 2^56171853611 is an apocalyptic number.

56171853611 is a deficient number, since it is larger than the sum of its proper divisors (4704830389).

56171853611 is a wasteful number, since it uses less digits than its factorization.

56171853611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22078.

The product of its digits is 151200, while the sum is 44.

The spelling of 56171853611 in words is "fifty-six billion, one hundred seventy-one million, eight hundred fifty-three thousand, six hundred eleven".