56161416165 has 16 divisors (see below), whose sum is σ = 90052355328. Its totient is φ = 29888058816.

The previous prime is 56161416149. The next prime is 56161416167.

56161416165 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56161416165 - 2⁴ = 56161416149 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 (56161416167) 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, 4036354 + ... + 4050243.

It is an arithmetic number, because the mean of its divisors is an integer number (5628272208).

Almost surely, 2^56161416165 is an apocalyptic number.

It is an amenable number.

56161416165 is a deficient number, since it is larger than the sum of its proper divisors (33890939163).

56161416165 is a wasteful number, since it uses less digits than its factorization.

56161416165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087068.

The product of its digits is 129600, while the sum is 42.

The spelling of 56161416165 in words is "fifty-six billion, one hundred sixty-one million, four hundred sixteen thousand, one hundred sixty-five".