16618868 has 12 divisors (see below), whose sum is σ = 33237792. Its totient is φ = 7122360.

The previous prime is 16618867. The next prime is 16618873. The reversal of 16618868 is 86881661.

It is a happy number.

16618868 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16618867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296738 + ... + 296793.

It is an arithmetic number, because the mean of its divisors is an integer number (2769816).

Almost surely, 2^16618868 is an apocalyptic number.

It is an amenable number.

16618868 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.

16618868 is a wasteful number, since it uses less digits than its factorization.

16618868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593542 (or 593540 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 16618868 is about 4076.6245841382. The cubic root of 16618868 is about 255.1920531915.

The spelling of 16618868 in words is "sixteen million, six hundred eighteen thousand, eight hundred sixty-eight".