168135230881267 has 16 divisors (see below), whose sum is σ = 185650190052768. Its totient is φ = 151281510462720.

The previous prime is 168135230881223. The next prime is 168135230881273. The reversal of 168135230881267 is 762188032531861.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 168135230881267 - 2¹¹ = 168135230879219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168135230881067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139851448 + ... + 141048565.

It is an arithmetic number, because the mean of its divisors is an integer number (11603136878298).

Almost surely, 2^{168135230881267} is an apocalyptic number.

168135230881267 is a deficient number, since it is larger than the sum of its proper divisors (17514959171501).

168135230881267 is a wasteful number, since it uses less digits than its factorization.

168135230881267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280901190.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 168135230881267 in words is "one hundred sixty-eight trillion, one hundred thirty-five billion, two hundred thirty million, eight hundred eighty-one thousand, two hundred sixty-seven".