168138428358 has 16 divisors (see below), whose sum is σ = 341789592816. Its totient is φ = 55127353440.

The previous prime is 168138428299. The next prime is 168138428369. The reversal of 168138428358 is 853824831861.

168138428358 is digitally balanced in base 3, 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 = 168138428298 and 168138428307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229696941 + ... + 229697672.

It is an arithmetic number, because the mean of its divisors is an integer number (21361849551).

Almost surely, 2^168138428358 is an apocalyptic number.

168138428358 is an abundant number, since it is smaller than the sum of its proper divisors (173651164458).

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

168138428358 is a wasteful number, since it uses less digits than its factorization.

168138428358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459394679.

The product of its digits is 8847360, while the sum is 57.

The spelling of 168138428358 in words is "one hundred sixty-eight billion, one hundred thirty-eight million, four hundred twenty-eight thousand, three hundred fifty-eight".