16853333688 has 80 divisors (see below), whose sum is σ = 47261206080. Its totient is φ = 5611082112.

The previous prime is 16853333683. The next prime is 16853333689. The reversal of 16853333688 is 88633335861.

It is a happy number.

16853333688 is a `hidden beast` number, since 16 + 8 + 533 + 33 + 68 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16853333683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 544156 + ... + 574292.

It is an arithmetic number, because the mean of its divisors is an integer number (590765076).

Almost surely, 2^16853333688 is an apocalyptic number.

16853333688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16853333688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23630603040).

16853333688 is an abundant number, since it is smaller than the sum of its proper divisors (30407872392).

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

16853333688 is a wasteful number, since it uses less digits than its factorization.

16853333688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31018 (or 31005 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 16853333688 in words is "sixteen billion, eight hundred fifty-three million, three hundred thirty-three thousand, six hundred eighty-eight".