181065848418263 has 2 divisors, whose sum is σ = 181065848418264. Its totient is φ = 181065848418262.

The previous prime is 181065848418199. The next prime is 181065848418271. The reversal of 181065848418263 is 362814848560181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 181065848418263 - 2⁶ = 181065848418199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 181065848418263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (181065848418163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90532924209131 + 90532924209132.

It is an arithmetic number, because the mean of its divisors is an integer number (90532924209132).

Almost surely, 2^{181065848418263} is an apocalyptic number.

181065848418263 is a deficient number, since it is larger than the sum of its proper divisors (1).

181065848418263 is an equidigital number, since it uses as much as digits as its factorization.

181065848418263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70778880, while the sum is 65.

The spelling of 181065848418263 in words is "one hundred eighty-one trillion, sixty-five billion, eight hundred forty-eight million, four hundred eighteen thousand, two hundred sixty-three".