168522613172 has 12 divisors (see below), whose sum is σ = 299068299936. Its totient is φ = 83074527480.

The previous prime is 168522613157. The next prime is 168522613187. The reversal of 168522613172 is 271316225861.

168522613172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168522613157) and next prime (168522613187).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 296694458 + ... + 296695025.

It is an arithmetic number, because the mean of its divisors is an integer number (24922358328).

Almost surely, 2^168522613172 is an apocalyptic number.

It is an amenable number.

168522613172 is a deficient number, since it is larger than the sum of its proper divisors (130545686764).

168522613172 is a wasteful number, since it uses less digits than its factorization.

168522613172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593389558 (or 593389556 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The spelling of 168522613172 in words is "one hundred sixty-eight billion, five hundred twenty-two million, six hundred thirteen thousand, one hundred seventy-two".