56055106166161 has 4 divisors (see below), whose sum is σ = 56055128212800. Its totient is φ = 56055084119524.

The previous prime is 56055106166159. The next prime is 56055106166201. The reversal of 56055106166161 is 16166160155065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56055106166161 - 2¹ = 56055106166159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56055106166461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6624301 + ... + 12489658.

It is an arithmetic number, because the mean of its divisors is an integer number (14013782053200).

Almost surely, 2^{56055106166161} is an apocalyptic number.

It is an amenable number.

56055106166161 is a deficient number, since it is larger than the sum of its proper divisors (22046639).

56055106166161 is a wasteful number, since it uses less digits than its factorization.

56055106166161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22046638.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 56055106166161 in words is "fifty-six trillion, fifty-five billion, one hundred six million, one hundred sixty-six thousand, one hundred sixty-one".