163503206500255 has 16 divisors (see below), whose sum is σ = 200380659110784. Its totient is φ = 128018087142400.

The previous prime is 163503206500247. The next prime is 163503206500301. The reversal of 163503206500255 is 552005602305361.

163503206500255 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 163503206500255 - 2³ = 163503206500247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17182605 + ... + 24944905.

It is an arithmetic number, because the mean of its divisors is an integer number (12523791194424).

Almost surely, 2^{163503206500255} is an apocalyptic number.

163503206500255 is a deficient number, since it is larger than the sum of its proper divisors (36877452610529).

163503206500255 is an equidigital number, since it uses as much as digits as its factorization.

163503206500255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851986.

The product of its (nonzero) digits is 810000, while the sum is 43.

The spelling of 163503206500255 in words is "one hundred sixty-three trillion, five hundred three billion, two hundred six million, five hundred thousand, two hundred fifty-five".