168485447353 has 2 divisors, whose sum is σ = 168485447354. Its totient is φ = 168485447352.

The previous prime is 168485447311. The next prime is 168485447381. The reversal of 168485447353 is 353744584861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91574627769 + 76910819584 = 302613^2 + 277328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168485447353 is a prime.

It is not a weakly prime, because it can be changed into another prime (168485447303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84242723676 + 84242723677.

It is an arithmetic number, because the mean of its divisors is an integer number (84242723677).

Almost surely, 2^168485447353 is an apocalyptic number.

It is an amenable number.

168485447353 is a deficient number, since it is larger than the sum of its proper divisors (1).

168485447353 is an equidigital number, since it uses as much as digits as its factorization.

168485447353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38707200, while the sum is 58.

The spelling of 168485447353 in words is "one hundred sixty-eight billion, four hundred eighty-five million, four hundred forty-seven thousand, three hundred fifty-three".