16533668 has 24 divisors (see below), whose sum is σ = 29719872. Its totient is φ = 8045024.

The previous prime is 16533661. The next prime is 16533677. The reversal of 16533668 is 86633561.

It is not an unprimeable number, because it can be changed into a prime (16533661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35171 + ... + 35637.

It is an arithmetic number, because the mean of its divisors is an integer number (1238328).

Almost surely, 2^16533668 is an apocalyptic number.

It is an amenable number.

16533668 is a deficient number, since it is larger than the sum of its proper divisors (13186204).

16533668 is a wasteful number, since it uses less digits than its factorization.

16533668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 689 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 16533668 is about 4066.1613347235. The cubic root of 16533668 is about 254.7552078607.

It can be divided in two parts, 165 and 33668, that added together give a palindrome (33833).

The spelling of 16533668 in words is "sixteen million, five hundred thirty-three thousand, six hundred sixty-eight".