168111480209 has 2 divisors, whose sum is σ = 168111480210. Its totient is φ = 168111480208.

The previous prime is 168111480181. The next prime is 168111480223. The reversal of 168111480209 is 902084111861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165628650625 + 2482829584 = 406975^2 + 49828^2 .

It is a cyclic number.

It is not a de Polignac number, because 168111480209 - 2²⁰ = 168110431633 is a prime.

It is a super-2 number, since 2×168111480209² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168111480809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84055740104 + 84055740105.

It is an arithmetic number, because the mean of its divisors is an integer number (84055740105).

Almost surely, 2^168111480209 is an apocalyptic number.

It is an amenable number.

168111480209 is a deficient number, since it is larger than the sum of its proper divisors (1).

168111480209 is an equidigital number, since it uses as much as digits as its factorization.

168111480209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 41.

The spelling of 168111480209 in words is "one hundred sixty-eight billion, one hundred eleven million, four hundred eighty thousand, two hundred nine".