168040304873256 has 32 divisors (see below), whose sum is σ = 420101174469600. Its totient is φ = 56013379986240.

The previous prime is 168040304873251. The next prime is 168040304873257. The reversal of 168040304873256 is 652378403040861.

It is a happy number.

168040304873256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 168040304873196 and 168040304873205.

It is not an unprimeable number, because it can be changed into a prime (168040304873251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27048675 + ... + 32675853.

It is an arithmetic number, because the mean of its divisors is an integer number (13128161702175).

Almost surely, 2^{168040304873256} is an apocalyptic number.

It is an amenable number.

168040304873256 is an abundant number, since it is smaller than the sum of its proper divisors (252060869596344).

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

168040304873256 is a wasteful number, since it uses less digits than its factorization.

168040304873256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6871449 (or 6871445 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 168040304873256 in words is "one hundred sixty-eight trillion, forty billion, three hundred four million, eight hundred seventy-three thousand, two hundred fifty-six".