16316216 has 48 divisors (see below), whose sum is σ = 36012600. Its totient is φ = 6909504.

The previous prime is 16316207. The next prime is 16316227. The reversal of 16316216 is 61261361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41750 + ... + 42138.

Almost surely, 2^16316216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16316216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18006300).

16316216 is an abundant number, since it is smaller than the sum of its proper divisors (19696384).

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

16316216 is a wasteful number, since it uses less digits than its factorization.

16316216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 505 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 16316216 is about 4039.3336084062. Note that the first 3 decimals coincide. The cubic root of 16316216 is about 253.6334224709.

Adding to 16316216 its reverse (61261361), we get a palindrome (77577577).

The spelling of 16316216 in words is "sixteen million, three hundred sixteen thousand, two hundred sixteen".