216272711 has 2 divisors, whose sum is σ = 216272712. Its totient is φ = 216272710.

The previous prime is 216272689. The next prime is 216272713. The reversal of 216272711 is 117272612.

216272711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216272711 - 2¹⁰ = 216271687 is a prime.

Together with 216272713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216272713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108136355 + 108136356.

It is an arithmetic number, because the mean of its divisors is an integer number (108136356).

Almost surely, 2^216272711 is an apocalyptic number.

216272711 is a deficient number, since it is larger than the sum of its proper divisors (1).

216272711 is an equidigital number, since it uses as much as digits as its factorization.

216272711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 29.

The square root of 216272711 is about 14706.2133467457. The cubic root of 216272711 is about 600.2524039907.

Subtracting from 216272711 its reverse (117272612), we obtain a palindrome (99000099).

The spelling of 216272711 in words is "two hundred sixteen million, two hundred seventy-two thousand, seven hundred eleven".