16325543168 has 144 divisors (see below), whose sum is σ = 36168007680. Its totient is φ = 7293081600.

The previous prime is 16325543167. The next prime is 16325543191. The reversal of 16325543168 is 86134552361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16325543167) 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 15 ways as a sum of consecutive naturals, for example, 68307593 + ... + 68307831.

It is an arithmetic number, because the mean of its divisors is an integer number (251166720).

Almost surely, 2^16325543168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16325543168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18084003840).

16325543168 is an abundant number, since it is smaller than the sum of its proper divisors (19842464512).

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

16325543168 is a wasteful number, since it uses less digits than its factorization.

16325543168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 570 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The spelling of 16325543168 in words is "sixteen billion, three hundred twenty-five million, five hundred forty-three thousand, one hundred sixty-eight".