16227616 has 12 divisors (see below), whose sum is σ = 31948182. Its totient is φ = 8113792.

The previous prime is 16227611. The next prime is 16227619. The reversal of 16227616 is 61672261.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8410000 + 7817616 = 2900^2 + 2796^2 .

It is not an unprimeable number, because it can be changed into a prime (16227611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253525 + ... + 253588.

Almost surely, 2^16227616 is an apocalyptic number.

16227616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16227616 is a deficient number, since it is larger than the sum of its proper divisors (15720566).

16227616 is an equidigital number, since it uses as much as digits as its factorization.

16227616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507123 (or 507115 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 16227616 is about 4028.3515238867. The cubic root of 16227616 is about 253.1734972056.

Adding to 16227616 its reverse (61672261), we get a palindrome (77899877).

The spelling of 16227616 in words is "sixteen million, two hundred twenty-seven thousand, six hundred sixteen".