16523668 has 12 divisors (see below), whose sum is σ = 33047392. Its totient is φ = 7081560.

The previous prime is 16523657. The next prime is 16523681. The reversal of 16523668 is 86632561.

16523668 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295038 + ... + 295093.

Almost surely, 2^16523668 is an apocalyptic number.

It is an amenable number.

16523668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16523668 is a wasteful number, since it uses less digits than its factorization.

16523668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590142 (or 590140 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 16523668 is about 4064.9314877375. The cubic root of 16523668 is about 254.7038366050.

The spelling of 16523668 in words is "sixteen million, five hundred twenty-three thousand, six hundred sixty-eight".