16868567021852 has 96 divisors (see below), whose sum is σ = 37627938754560. Its totient is φ = 6439304067840.

The previous prime is 16868567021851. The next prime is 16868567021863. The reversal of 16868567021852 is 25812076586861.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868567021851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5729027 + ... + 8158362.

It is an arithmetic number, because the mean of its divisors is an integer number (391957695360).

Almost surely, 2^{16868567021852} is an apocalyptic number.

It is an amenable number.

16868567021852 is an abundant number, since it is smaller than the sum of its proper divisors (20759371732708).

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

16868567021852 is a wasteful number, since it uses less digits than its factorization.

16868567021852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13887531 (or 13887529 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 65.

The spelling of 16868567021852 in words is "sixteen trillion, eight hundred sixty-eight billion, five hundred sixty-seven million, twenty-one thousand, eight hundred fifty-two".