50566165405 has 24 divisors (see below), whose sum is σ = 70998221952. Its totient is φ = 33867527904.

The previous prime is 50566165399. The next prime is 50566165411. The reversal of 50566165405 is 50456166505.

It is an interprime number because it is at equal distance from previous prime (50566165399) and next prime (50566165411).

It is not a de Polignac number, because 50566165405 - 2⁷ = 50566165277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 325969 + ... + 455398.

It is an arithmetic number, because the mean of its divisors is an integer number (2958259248).

Almost surely, 2^50566165405 is an apocalyptic number.

It is an amenable number.

50566165405 is a deficient number, since it is larger than the sum of its proper divisors (20432056547).

50566165405 is an equidigital number, since it uses as much as digits as its factorization.

50566165405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781465 (or 781422 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 50566165405 in words is "fifty billion, five hundred sixty-six million, one hundred sixty-five thousand, four hundred five".