50643161655 has 32 divisors (see below), whose sum is σ = 81683610624. Its totient is φ = 26792176896.

The previous prime is 50643161623. The next prime is 50643161669. The reversal of 50643161655 is 55616134605.

50643161655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50643161655 - 2⁵ = 50643161623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1199179 + ... + 1240691.

It is an arithmetic number, because the mean of its divisors is an integer number (2552612832).

Almost surely, 2^50643161655 is an apocalyptic number.

50643161655 is a deficient number, since it is larger than the sum of its proper divisors (31040448969).

50643161655 is a wasteful number, since it uses less digits than its factorization.

50643161655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42175.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 50643161655 in words is "fifty billion, six hundred forty-three million, one hundred sixty-one thousand, six hundred fifty-five".