168885350416511 has 16 divisors (see below), whose sum is σ = 176722037743104. Its totient is φ = 161090443534944.

The previous prime is 168885350416451. The next prime is 168885350416529. The reversal of 168885350416511 is 115614053588861.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 168885350416511 - 2¹⁰ = 168885350415487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168885350436511) 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, 4740296 + ... + 18980018.

It is an arithmetic number, because the mean of its divisors is an integer number (11045127358944).

Almost surely, 2^{168885350416511} is an apocalyptic number.

168885350416511 is a deficient number, since it is larger than the sum of its proper divisors (7836687326593).

168885350416511 is a wasteful number, since it uses less digits than its factorization.

168885350416511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14241190.

The product of its (nonzero) digits is 27648000, while the sum is 62.

The spelling of 168885350416511 in words is "one hundred sixty-eight trillion, eight hundred eighty-five billion, three hundred fifty million, four hundred sixteen thousand, five hundred eleven".