50165139168 has 72 divisors (see below), whose sum is σ = 143006245200. Its totient is φ = 16680789504.

The previous prime is 50165139131. The next prime is 50165139169. The reversal of 50165139168 is 86193156105.

50165139168 is a `hidden beast` number, since 501 + 6 + 5 + 139 + 1 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50165139169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95148 + ... + 330731.

It is an arithmetic number, because the mean of its divisors is an integer number (1986197850).

Almost surely, 2^50165139168 is an apocalyptic number.

It is an amenable number.

50165139168 is an abundant number, since it is smaller than the sum of its proper divisors (92841106032).

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

50165139168 is a wasteful number, since it uses less digits than its factorization.

50165139168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426304 (or 426293 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 50165139168 in words is "fifty billion, one hundred sixty-five million, one hundred thirty-nine thousand, one hundred sixty-eight".