168459911 has 4 divisors (see below), whose sum is σ = 168541824. Its totient is φ = 168378000.

The previous prime is 168459883. The next prime is 168459913. The reversal of 168459911 is 119954861.

168459911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119954861 = 13 ⋅9227297.

It is a cyclic number.

It is not a de Polignac number, because 168459911 - 2¹⁰ = 168458887 is a prime.

It is a super-2 number, since 2×168459911² = 56757483228255842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168459913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37790 + ... + 42011.

It is an arithmetic number, because the mean of its divisors is an integer number (42135456).

Almost surely, 2^168459911 is an apocalyptic number.

168459911 is a deficient number, since it is larger than the sum of its proper divisors (81913).

168459911 is an equidigital number, since it uses as much as digits as its factorization.

168459911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81912.

The product of its digits is 77760, while the sum is 44.

The square root of 168459911 is about 12979.2107233067. The cubic root of 168459911 is about 552.2878922098.

The spelling of 168459911 in words is "one hundred sixty-eight million, four hundred fifty-nine thousand, nine hundred eleven".