16659445 has 16 divisors (see below), whose sum is σ = 22032000. Its totient is φ = 11992000.

The previous prime is 16659413. The next prime is 16659463. The reversal of 16659445 is 54495661.

It is a happy number.

It is not a de Polignac number, because 16659445 - 2⁵ = 16659413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16659398 and 16659407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4056 + ... + 7054.

It is an arithmetic number, because the mean of its divisors is an integer number (1377000).

Almost surely, 2^16659445 is an apocalyptic number.

It is an amenable number.

16659445 is a deficient number, since it is larger than the sum of its proper divisors (5372555).

16659445 is a wasteful number, since it uses less digits than its factorization.

16659445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116.

The product of its digits is 129600, while the sum is 40.

The square root of 16659445 is about 4081.5983388864. The cubic root of 16659445 is about 255.3995785927.

The spelling of 16659445 in words is "sixteen million, six hundred fifty-nine thousand, four hundred forty-five".