168185000213 has 2 divisors, whose sum is σ = 168185000214. Its totient is φ = 168185000212.

The previous prime is 168185000209. The next prime is 168185000251. The reversal of 168185000213 is 312000581861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123987085924 + 44197914289 = 352118^2 + 210233^2 .

It is a cyclic number.

It is not a de Polignac number, because 168185000213 - 2² = 168185000209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168185000273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84092500106 + 84092500107.

It is an arithmetic number, because the mean of its divisors is an integer number (84092500107).

Almost surely, 2^168185000213 is an apocalyptic number.

It is an amenable number.

168185000213 is a deficient number, since it is larger than the sum of its proper divisors (1).

168185000213 is an equidigital number, since it uses as much as digits as its factorization.

168185000213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 168185000213 in words is "one hundred sixty-eight billion, one hundred eighty-five million, two hundred thirteen", and thus it is an aban number.