56136663165 has 24 divisors (see below), whose sum is σ = 98726300064. Its totient is φ = 27217775200.

The previous prime is 56136663139. The next prime is 56136663173.

56136663165 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56136663165 - 2⁵ = 56136663133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15462831 + ... + 15466460.

It is an arithmetic number, because the mean of its divisors is an integer number (4113595836).

Almost surely, 2^56136663165 is an apocalyptic number.

56136663165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56136663165 is a deficient number, since it is larger than the sum of its proper divisors (42589636899).

56136663165 is a wasteful number, since it uses less digits than its factorization.

56136663165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30929321 (or 30929310 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 48.

The spelling of 56136663165 in words is "fifty-six billion, one hundred thirty-six million, six hundred sixty-three thousand, one hundred sixty-five".