56711121169 has 16 divisors (see below), whose sum is σ = 61204651200. Its totient is φ = 52373393856.

The previous prime is 56711121167. The next prime is 56711121197. The reversal of 56711121169 is 96112111765.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56711121169 - 2¹ = 56711121167 is a prime.

It is a super-2 number, since 2×56711121169² (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 (56711121161) 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, 347667 + ... + 484039.

It is an arithmetic number, because the mean of its divisors is an integer number (3825290700).

Almost surely, 2^56711121169 is an apocalyptic number.

It is an amenable number.

56711121169 is a deficient number, since it is larger than the sum of its proper divisors (4493530031).

56711121169 is a wasteful number, since it uses less digits than its factorization.

56711121169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136944.

The product of its digits is 22680, while the sum is 40.

The spelling of 56711121169 in words is "fifty-six billion, seven hundred eleven million, one hundred twenty-one thousand, one hundred sixty-nine".