50665064331 has 16 divisors (see below), whose sum is σ = 79290500864. Its totient is φ = 28168992864.

The previous prime is 50665064299. The next prime is 50665064353. The reversal of 50665064331 is 13346056605.

It is a happy number.

It is not a de Polignac number, because 50665064331 - 2⁵ = 50665064299 is a prime.

It is a super-2 number, since 2×50665064331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50665064331.

It is not an unprimeable number, because it can be changed into a prime (50665064831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32602225 + ... + 32603778.

It is an arithmetic number, because the mean of its divisors is an integer number (4955656304).

Almost surely, 2^50665064331 is an apocalyptic number.

50665064331 is a deficient number, since it is larger than the sum of its proper divisors (28625436533).

50665064331 is a wasteful number, since it uses less digits than its factorization.

50665064331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65206050.

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 50665064331 in words is "fifty billion, six hundred sixty-five million, sixty-four thousand, three hundred thirty-one".