168135230879218 has 16 divisors (see below), whose sum is σ = 261626235768000. Its totient is φ = 80942635391632.

The previous prime is 168135230879177. The next prime is 168135230879219. The reversal of 168135230879218 is 812978032531861.

168135230879218 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 168135230879218.

It is not an unprimeable number, because it can be changed into a prime (168135230879219) 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, 4037421088 + ... + 4037462731.

It is an arithmetic number, because the mean of its divisors is an integer number (16351639735500).

Almost surely, 2^{168135230879218} is an apocalyptic number.

168135230879218 is a deficient number, since it is larger than the sum of its proper divisors (93491004888782).

168135230879218 is a wasteful number, since it uses less digits than its factorization.

168135230879218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074884209.

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 168135230879218 in words is "one hundred sixty-eight trillion, one hundred thirty-five billion, two hundred thirty million, eight hundred seventy-nine thousand, two hundred eighteen".