16680038 has 8 divisors (see below), whose sum is σ = 25075488. Its totient is φ = 8321544.

The previous prime is 16680031. The next prime is 16680047. The reversal of 16680038 is 83008661.

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

It is a junction number, because it is equal to n+sod(n) for n = 16679986 and 16680013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680031) 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, 8081 + ... + 9932.

It is an arithmetic number, because the mean of its divisors is an integer number (3134436).

Almost surely, 2^16680038 is an apocalyptic number.

16680038 is a deficient number, since it is larger than the sum of its proper divisors (8395450).

16680038 is a wasteful number, since it uses less digits than its factorization.

16680038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18478.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 16680038 is about 4084.1202234998. The cubic root of 16680038 is about 255.5047697303.

Adding to 16680038 its reverse (83008661), we get a palindrome (99688699).

The spelling of 16680038 in words is "sixteen million, six hundred eighty thousand, thirty-eight".