16659924 has 12 divisors (see below), whose sum is σ = 38873184. Its totient is φ = 5553304.

The previous prime is 16659919. The next prime is 16659931. The reversal of 16659924 is 42995661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694152 + ... + 694175.

It is an arithmetic number, because the mean of its divisors is an integer number (3239432).

Almost surely, 2^16659924 is an apocalyptic number.

It is an amenable number.

16659924 is an abundant number, since it is smaller than the sum of its proper divisors (22213260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16659924 is a wasteful number, since it uses less digits than its factorization.

16659924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388334 (or 1388332 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 16659924 is about 4081.6570164579. The cubic root of 16659924 is about 255.4020263578.

The spelling of 16659924 in words is "sixteen million, six hundred fifty-nine thousand, nine hundred twenty-four".