50143170816 has 108 divisors (see below), whose sum is σ = 144696337968. Its totient is φ = 16700378112.

The previous prime is 50143170787. The next prime is 50143170817. The reversal of 50143170816 is 61807134105.

50143170816 is a `hidden beast` number, since 501 + 4 + 3 + 1 + 70 + 81 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (50143170817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2947551 + ... + 2964513.

Almost surely, 2^50143170816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50143170816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72348168984).

50143170816 is an abundant number, since it is smaller than the sum of its proper divisors (94553167152).

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

50143170816 is a wasteful number, since it uses less digits than its factorization.

50143170816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18268 (or 18251 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 50143170816 in words is "fifty billion, one hundred forty-three million, one hundred seventy thousand, eight hundred sixteen".