16680316 has 6 divisors (see below), whose sum is σ = 29190560. Its totient is φ = 8340156.

The previous prime is 16680311. The next prime is 16680331. The reversal of 16680316 is 61308661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2085036 + ... + 2085043.

Almost surely, 2^16680316 is an apocalyptic number.

It is an amenable number.

16680316 is a deficient number, since it is larger than the sum of its proper divisors (12510244).

16680316 is a wasteful number, since it uses less digits than its factorization.

16680316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170083 (or 4170081 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 16680316 is about 4084.1542576156. The cubic root of 16680316 is about 255.5061891901.

Adding to 16680316 its reverse (61308661), we get a palindrome (77988977).

The spelling of 16680316 in words is "sixteen million, six hundred eighty thousand, three hundred sixteen".