50561111166 has 64 divisors (see below), whose sum is σ = 112848107520. Its totient is φ = 15033962880.

The previous prime is 50561111131. The next prime is 50561111177. The reversal of 50561111166 is 66111116505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62581 + ... + 324096.

It is an arithmetic number, because the mean of its divisors is an integer number (1763251680).

Almost surely, 2^50561111166 is an apocalyptic number.

50561111166 is an abundant number, since it is smaller than the sum of its proper divisors (62286996354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50561111166 is a wasteful number, since it uses less digits than its factorization.

50561111166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386769.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 50561111166 in words is "fifty billion, five hundred sixty-one million, one hundred eleven thousand, one hundred sixty-six".