16641316 has 6 divisors (see below), whose sum is σ = 29122310. Its totient is φ = 8320656.

The previous prime is 16641307. The next prime is 16641319. The reversal of 16641316 is 61314661.

It can be written as a sum of positive squares in only one way, i.e., 14791716 + 1849600 = 3846^2 + 1360^2 .

It is not an unprimeable number, because it can be changed into a prime (16641319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2080161 + ... + 2080168.

Almost surely, 2^16641316 is an apocalyptic number.

It is an amenable number.

16641316 is a deficient number, since it is larger than the sum of its proper divisors (12480994).

16641316 is a wasteful number, since it uses less digits than its factorization.

16641316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160333 (or 4160331 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 16641316 is about 4079.3769132062. The cubic root of 16641316 is about 255.3069020459.

Adding to 16641316 its reverse (61314661), we get a palindrome (77955977).

The spelling of 16641316 in words is "sixteen million, six hundred forty-one thousand, three hundred sixteen".