168475911 has 16 divisors (see below), whose sum is σ = 231420000. Its totient is φ = 108943488.

The previous prime is 168475903. The next prime is 168475913. The reversal of 168475911 is 119574861.

It is not a de Polignac number, because 168475911 - 2³ = 168475903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168475913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36565 + ... + 40913.

It is an arithmetic number, because the mean of its divisors is an integer number (14463750).

Almost surely, 2^168475911 is an apocalyptic number.

168475911 is a deficient number, since it is larger than the sum of its proper divisors (62944089).

168475911 is a wasteful number, since it uses less digits than its factorization.

168475911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738.

The product of its digits is 60480, while the sum is 42.

The square root of 168475911 is about 12979.8270789714. The cubic root of 168475911 is about 552.3053767386.

The spelling of 168475911 in words is "one hundred sixty-eight million, four hundred seventy-five thousand, nine hundred eleven".