16685676 has 90 divisors (see below), whose sum is σ = 50789508. Its totient is φ = 4762800.

The previous prime is 16685671. The next prime is 16685681. The reversal of 16685676 is 67658661.

It is an interprime number because it is at equal distance from previous prime (16685671) and next prime (16685681).

It is not an unprimeable number, because it can be changed into a prime (16685671) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 15351 + ... + 16401.

Almost surely, 2^16685676 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 16685676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25394754).

16685676 is an abundant number, since it is smaller than the sum of its proper divisors (34103832).

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

16685676 is a wasteful number, since it uses less digits than its factorization.

16685676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1063 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 16685676 is about 4084.8103995167. The cubic root of 16685676 is about 255.5335541095.

The spelling of 16685676 in words is "sixteen million, six hundred eighty-five thousand, six hundred seventy-six".