168270015816 has 128 divisors (see below), whose sum is σ = 535214438400. Its totient is φ = 47984996160.

The previous prime is 168270015779. The next prime is 168270015821. The reversal of 168270015816 is 618510072861.

168270015816 is a `hidden beast` number, since 1 + 68 + 2 + 7 + 0 + 0 + 1 + 581 + 6 = 666.

168270015816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 684381 + ... + 897171.

It is an arithmetic number, because the mean of its divisors is an integer number (4181362800).

Almost surely, 2^168270015816 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 168270015816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267607219200).

168270015816 is an abundant number, since it is smaller than the sum of its proper divisors (366944422584).

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

168270015816 is a wasteful number, since it uses less digits than its factorization.

168270015816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213336 (or 213326 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 168270015816 in words is "one hundred sixty-eight billion, two hundred seventy million, fifteen thousand, eight hundred sixteen".