56143434165 has 32 divisors (see below), whose sum is σ = 110559380736. Its totient is φ = 23691294720.

The previous prime is 56143434161. The next prime is 56143434209.

It is a happy number.

56143434165 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56143434165 - 2² = 56143434161 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56143434161) 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 31 ways as a sum of consecutive naturals, for example, 20563996 + ... + 20566725.

It is an arithmetic number, because the mean of its divisors is an integer number (3454980648).

Almost surely, 2^56143434165 is an apocalyptic number.

It is an amenable number.

56143434165 is a deficient number, since it is larger than the sum of its proper divisors (54415946571).

56143434165 is a wasteful number, since it uses less digits than its factorization.

56143434165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41130749.

The product of its digits is 518400, while the sum is 42.

The spelling of 56143434165 in words is "fifty-six billion, one hundred forty-three million, four hundred thirty-four thousand, one hundred sixty-five".