50661050165 has 48 divisors (see below), whose sum is σ = 69820531200. Its totient is φ = 35195550720.

The previous prime is 50661050147. The next prime is 50661050171. The reversal of 50661050165 is 56105016605.

It is not a de Polignac number, because 50661050165 - 2¹⁸ = 50660788021 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 47 ways as a sum of consecutive naturals, for example, 12925076 + ... + 12928994.

It is an arithmetic number, because the mean of its divisors is an integer number (1454594400).

Almost surely, 2^50661050165 is an apocalyptic number.

50661050165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50661050165 is a deficient number, since it is larger than the sum of its proper divisors (19159481035).

50661050165 is a wasteful number, since it uses less digits than its factorization.

50661050165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898 (or 4887 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 50661050165 in words is "fifty billion, six hundred sixty-one million, fifty thousand, one hundred sixty-five".