168022268181 has 12 divisors (see below), whose sum is σ = 242849878752. Its totient is φ = 111945131496.

The previous prime is 168022268153. The next prime is 168022268189. The reversal of 168022268181 is 181862220861.

168022268181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168022268181 - 2³¹ = 165874784533 is a prime.

It is a super-2 number, since 2×168022268181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168022268189) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5794231 + ... + 5823156.

It is an arithmetic number, because the mean of its divisors is an integer number (20237489896).

Almost surely, 2^168022268181 is an apocalyptic number.

It is an amenable number.

168022268181 is a deficient number, since it is larger than the sum of its proper divisors (74827610571).

168022268181 is a wasteful number, since it uses less digits than its factorization.

168022268181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11619000 (or 11618997 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 168022268181 in words is "one hundred sixty-eight billion, twenty-two million, two hundred sixty-eight thousand, one hundred eighty-one".