216112316 has 12 divisors (see below), whose sum is σ = 432224688. Its totient is φ = 92619552.

The previous prime is 216112307. The next prime is 216112357. The reversal of 216112316 is 613211612.

216112316 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 216112291 and 216112300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3859121 + ... + 3859176.

It is an arithmetic number, because the mean of its divisors is an integer number (36018724).

Almost surely, 2^216112316 is an apocalyptic number.

It is an amenable number.

216112316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216112316 is a wasteful number, since it uses less digits than its factorization.

216112316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7718308 (or 7718306 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 216112316 is about 14700.7590280230. The cubic root of 216112316 is about 600.1039782761.

Adding to 216112316 its reverse (613211612), we get a palindrome (829323928).

The spelling of 216112316 in words is "two hundred sixteen million, one hundred twelve thousand, three hundred sixteen".