16806216 has 96 divisors (see below), whose sum is σ = 50561280. Its totient is φ = 4636800.

The previous prime is 16806211. The next prime is 16806233. The reversal of 16806216 is 61260861.

It is not an unprimeable number, because it can be changed into a prime (16806211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36226 + ... + 36686.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 2^16806216 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 16806216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25280640).

16806216 is an abundant number, since it is smaller than the sum of its proper divisors (33755064).

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

16806216 is a wasteful number, since it uses less digits than its factorization.

16806216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16806216 is about 4099.5385106131. The cubic root of 16806216 is about 256.1474167219.

The spelling of 16806216 in words is "sixteen million, eight hundred six thousand, two hundred sixteen".