216338656175 has 6 divisors (see below), whose sum is σ = 268259933688. Its totient is φ = 173070924920.

The previous prime is 216338656153. The next prime is 216338656187. The reversal of 216338656175 is 571656833612.

It is not a de Polignac number, because 216338656175 - 2¹⁸ = 216338394031 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 5 ways as a sum of consecutive naturals, for example, 4326773099 + ... + 4326773148.

It is an arithmetic number, because the mean of its divisors is an integer number (44709988948).

Almost surely, 2^216338656175 is an apocalyptic number.

216338656175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

216338656175 is a deficient number, since it is larger than the sum of its proper divisors (51921277513).

216338656175 is an equidigital number, since it uses as much as digits as its factorization.

216338656175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8653546257 (or 8653546252 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 53.

The spelling of 216338656175 in words is "two hundred sixteen billion, three hundred thirty-eight million, six hundred fifty-six thousand, one hundred seventy-five".