16680965 has 8 divisors (see below), whose sum is σ = 22876800. Its totient is φ = 11438352.

The previous prime is 16680943. The next prime is 16680971. The reversal of 16680965 is 56908661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16680965 - 2⁶ = 16680901 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238265 + ... + 238334.

It is an arithmetic number, because the mean of its divisors is an integer number (2859600).

Almost surely, 2^16680965 is an apocalyptic number.

It is an amenable number.

16680965 is a deficient number, since it is larger than the sum of its proper divisors (6195835).

16680965 is an equidigital number, since it uses as much as digits as its factorization.

16680965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476611.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 16680965 is about 4084.2337102570. The cubic root of 16680965 is about 255.5095029037.

The spelling of 16680965 in words is "sixteen million, six hundred eighty thousand, nine hundred sixty-five".