16680536 has 16 divisors (see below), whose sum is σ = 33116040. Its totient is φ = 7849600.

The previous prime is 16680533. The next prime is 16680569. The reversal of 16680536 is 63508661.

It is a junction number, because it is equal to n+sod(n) for n = 16680496 and 16680505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61190 + ... + 61461.

Almost surely, 2^16680536 is an apocalyptic number.

It is an amenable number.

16680536 is a deficient number, since it is larger than the sum of its proper divisors (16435504).

16680536 is a wasteful number, since it uses less digits than its factorization.

16680536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122674 (or 122670 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 16680536 is about 4084.1811908876. The cubic root of 16680536 is about 255.5073124925.

The spelling of 16680536 in words is "sixteen million, six hundred eighty thousand, five hundred thirty-six".