16325216 has 48 divisors (see below), whose sum is σ = 34419168. Its totient is φ = 7603200.

The previous prime is 16325213. The next prime is 16325227. The reversal of 16325216 is 61252361.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16325213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29906 + ... + 30446.

It is an arithmetic number, because the mean of its divisors is an integer number (717066).

Almost surely, 2^16325216 is an apocalyptic number.

16325216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16325216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17209584).

16325216 is an abundant number, since it is smaller than the sum of its proper divisors (18093952).

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

16325216 is a wasteful number, since it uses less digits than its factorization.

16325216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 607 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 16325216 is about 4040.4474999683. The cubic root of 16325216 is about 253.6800485027.

Adding to 16325216 its reverse (61252361), we get a palindrome (77577577).

The spelling of 16325216 in words is "sixteen million, three hundred twenty-five thousand, two hundred sixteen".