168242482657841 has 2 divisors, whose sum is σ = 168242482657842. Its totient is φ = 168242482657840.

The previous prime is 168242482657747. The next prime is 168242482657859. The reversal of 168242482657841 is 148756284242861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131110034208241 + 37132448449600 = 11450329^2 + 6093640^2 .

It is an emirp because it is prime and its reverse (148756284242861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168242482657841 - 2¹⁰ = 168242482656817 is a prime.

It is not a weakly prime, because it can be changed into another prime (168242482657141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84121241328920 + 84121241328921.

It is an arithmetic number, because the mean of its divisors is an integer number (84121241328921).

Almost surely, 2^{168242482657841} is an apocalyptic number.

It is an amenable number.

168242482657841 is a deficient number, since it is larger than the sum of its proper divisors (1).

168242482657841 is an equidigital number, since it uses as much as digits as its factorization.

168242482657841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 330301440, while the sum is 68.

The spelling of 168242482657841 in words is "one hundred sixty-eight trillion, two hundred forty-two billion, four hundred eighty-two million, six hundred fifty-seven thousand, eight hundred forty-one".