50565166065 has 24 divisors (see below), whose sum is σ = 87690552768. Its totient is φ = 26954468640.

The previous prime is 50565166049. The next prime is 50565166087. The reversal of 50565166065 is 56066156505.

It is not a de Polignac number, because 50565166065 - 2⁴ = 50565166049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50565166065.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193341 + ... + 372170.

It is an arithmetic number, because the mean of its divisors is an integer number (3653773032).

Almost surely, 2^50565166065 is an apocalyptic number.

It is an amenable number.

50565166065 is a deficient number, since it is larger than the sum of its proper divisors (37125386703).

50565166065 is a wasteful number, since it uses less digits than its factorization.

50565166065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567509 (or 567506 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 50565166065 in words is "fifty billion, five hundred sixty-five million, one hundred sixty-six thousand, sixty-five".