16680146 has 8 divisors (see below), whose sum is σ = 28594560. Its totient is φ = 7148628.

The previous prime is 16680137. The next prime is 16680163. The reversal of 16680146 is 64108661.

It is a happy number.

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

It is a Curzon number.

It is an unprimeable number.

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, 595706 + ... + 595733.

It is an arithmetic number, because the mean of its divisors is an integer number (3574320).

Almost surely, 2^16680146 is an apocalyptic number.

16680146 is a deficient number, since it is larger than the sum of its proper divisors (11914414).

16680146 is a wasteful number, since it uses less digits than its factorization.

16680146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191448.

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

The square root of 16680146 is about 4084.1334454202. The cubic root of 16680146 is about 255.5053211770.

The spelling of 16680146 in words is "sixteen million, six hundred eighty thousand, one hundred forty-six".