16680297 has 8 divisors (see below), whose sum is σ = 22522240. Its totient is φ = 10979280.

The previous prime is 16680289. The next prime is 16680311. The reversal of 16680297 is 79208661.

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

It is not a de Polignac number, because 16680297 - 2³ = 16680289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16680227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34954 + ... + 35427.

It is an arithmetic number, because the mean of its divisors is an integer number (2815280).

Almost surely, 2^16680297 is an apocalyptic number.

It is an amenable number.

16680297 is a deficient number, since it is larger than the sum of its proper divisors (5841943).

16680297 is an equidigital number, since it uses as much as digits as its factorization.

16680297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70463.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 16680297 is about 4084.1519315520. The cubic root of 16680297 is about 255.5060921772.

The spelling of 16680297 in words is "sixteen million, six hundred eighty thousand, two hundred ninety-seven".