16680308 has 12 divisors (see below), whose sum is σ = 29377572. Its totient is φ = 8286720.

The previous prime is 16680289. The next prime is 16680311. The reversal of 16680308 is 80308661.

It can be written as a sum of positive squares in 2 ways, for example, as 9909904 + 6770404 = 3148^2 + 2602^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12653 + ... + 13908.

It is an arithmetic number, because the mean of its divisors is an integer number (2448131).

Almost surely, 2^16680308 is an apocalyptic number.

It is an amenable number.

16680308 is a deficient number, since it is larger than the sum of its proper divisors (12697264).

16680308 is a wasteful number, since it uses less digits than its factorization.

16680308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26722 (or 26720 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 16680308 is about 4084.1532782206. The cubic root of 16680308 is about 255.5061483426.

Adding to 16680308 its reverse (80308661), we get a palindrome (96988969).

The spelling of 16680308 in words is "sixteen million, six hundred eighty thousand, three hundred eight".