50009168664 has 192 divisors, whose sum is σ = 172871811840. Its totient is φ = 13189184640.

The previous prime is 50009168641. The next prime is 50009168707. The reversal of 50009168664 is 46686190005.

50009168664 is a `hidden beast` number, since 500 + 0 + 9 + 1 + 6 + 86 + 64 = 666.

50009168664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35559 + ... + 318249.

It is an arithmetic number, because the mean of its divisors is an integer number (900374020).

Almost surely, 2^50009168664 is an apocalyptic number.

50009168664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50009168664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86435905920).

50009168664 is an abundant number, since it is smaller than the sum of its proper divisors (122862643176).

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

50009168664 is a wasteful number, since it uses less digits than its factorization.

50009168664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282732 (or 282716 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 50009168664 in words is "fifty billion, nine million, one hundred sixty-eight thousand, six hundred sixty-four".