50561106165 has 12 divisors (see below), whose sum is σ = 87639250764. Its totient is φ = 26965923264.

The previous prime is 50561106119. The next prime is 50561106179. The reversal of 50561106165 is 56160116505.

It can be written as a sum of positive squares in 2 ways, for example, as 22917720996 + 27643385169 = 151386^2 + 166263^2 .

It is not a de Polignac number, because 50561106165 - 2¹⁰ = 50561105141 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561790024 + ... + 561790113.

It is an arithmetic number, because the mean of its divisors is an integer number (7303270897).

Almost surely, 2^50561106165 is an apocalyptic number.

It is an amenable number.

50561106165 is a deficient number, since it is larger than the sum of its proper divisors (37078144599).

50561106165 is a wasteful number, since it uses less digits than its factorization.

50561106165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123580148 (or 1123580145 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 50561106165 in words is "fifty billion, five hundred sixty-one million, one hundred six thousand, one hundred sixty-five".