16659844 has 12 divisors (see below), whose sum is σ = 29203468. Its totient is φ = 8316000.

The previous prime is 16659829. The next prime is 16659869. The reversal of 16659844 is 44895661.

It can be written as a sum of positive squares in 2 ways, for example, as 11819844 + 4840000 = 3438^2 + 2200^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16659844.

It is a congruent 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, 507 + ... + 5794.

Almost surely, 2^16659844 is an apocalyptic number.

It is an amenable number.

16659844 is a deficient number, since it is larger than the sum of its proper divisors (12543624).

16659844 is a wasteful number, since it uses less digits than its factorization.

16659844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966 (or 6964 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 16659844 is about 4081.6472165046. The cubic root of 16659844 is about 255.4016175485.

The spelling of 16659844 in words is "sixteen million, six hundred fifty-nine thousand, eight hundred forty-four".