16533868 has 12 divisors (see below), whose sum is σ = 31160080. Its totient is φ = 7630992.

The previous prime is 16533863. The next prime is 16533893. The reversal of 16533868 is 86833561.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16533868.

It is not an unprimeable number, because it can be changed into a prime (16533863) by changing a digit.

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, 158928 + ... + 159031.

Almost surely, 2^16533868 is an apocalyptic number.

It is an amenable number.

16533868 is a deficient number, since it is larger than the sum of its proper divisors (14626212).

16533868 is a wasteful number, since it uses less digits than its factorization.

16533868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317976 (or 317974 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 16533868 is about 4066.1859278690. The cubic root of 16533868 is about 254.7562350745.

The spelling of 16533868 in words is "sixteen million, five hundred thirty-three thousand, eight hundred sixty-eight".