16685768 has 32 divisors (see below), whose sum is σ = 34421760. Its totient is φ = 7519680.

The previous prime is 16685761. The next prime is 16685777. The reversal of 16685768 is 86758661.

It is not an unprimeable number, because it can be changed into a prime (16685761) 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, 10430 + ... + 11922.

It is an arithmetic number, because the mean of its divisors is an integer number (1075680).

Almost surely, 2^16685768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16685768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17210880).

16685768 is an abundant number, since it is smaller than the sum of its proper divisors (17735992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16685768 is a wasteful number, since it uses less digits than its factorization.

16685768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1633 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 16685768 is about 4084.8216607338. The cubic root of 16685768 is about 255.5340237547.

The spelling of 16685768 in words is "sixteen million, six hundred eighty-five thousand, seven hundred sixty-eight".