16188375312 has 80 divisors (see below), whose sum is σ = 46570680000. Its totient is φ = 5384042496.

The previous prime is 16188375241. The next prime is 16188375349. The reversal of 16188375312 is 21357388161.

It is a happy number.

16188375312 is a `hidden beast` number, since 1 + 6 + 1 + 88 + 37 + 531 + 2 = 666.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 152239 + ... + 235697.

It is an arithmetic number, because the mean of its divisors is an integer number (582133500).

Almost surely, 2^16188375312 is an apocalyptic number.

16188375312 is a gapful number since it is divisible by the number (12) 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 16188375312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23285340000).

16188375312 is an abundant number, since it is smaller than the sum of its proper divisors (30382304688).

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

16188375312 is a wasteful number, since it uses less digits than its factorization.

16188375312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83925 (or 83913 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 16188375312 in words is "sixteen billion, one hundred eighty-eight million, three hundred seventy-five thousand, three hundred twelve".