168885005191 has 12 divisors (see below), whose sum is σ = 196798582128. Its totient is φ = 144507670272.

The previous prime is 168885005167. The next prime is 168885005209. The reversal of 168885005191 is 191500588861.

It is a happy number.

168885005191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168885005191 - 2¹⁵ = 168884972423 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 (168885005591) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2958411 + ... + 3014956.

It is an arithmetic number, because the mean of its divisors is an integer number (16399881844).

Almost surely, 2^168885005191 is an apocalyptic number.

168885005191 is a deficient number, since it is larger than the sum of its proper divisors (27913576937).

168885005191 is an equidigital number, since it uses as much as digits as its factorization.

168885005191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973958 (or 5973951 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 52.

The spelling of 168885005191 in words is "one hundred sixty-eight billion, eight hundred eighty-five million, five thousand, one hundred ninety-one".