163413355331 has 2 divisors, whose sum is σ = 163413355332. Its totient is φ = 163413355330.

The previous prime is 163413355307. The next prime is 163413355373. The reversal of 163413355331 is 133553314361.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163413355331 is a prime.

It is a super-3 number, since 3×163413355331³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (163413352331) 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, 81706677665 + 81706677666.

It is an arithmetic number, because the mean of its divisors is an integer number (81706677666).

Almost surely, 2^163413355331 is an apocalyptic number.

163413355331 is a deficient number, since it is larger than the sum of its proper divisors (1).

163413355331 is an equidigital number, since it uses as much as digits as its factorization.

163413355331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 38.

Adding to 163413355331 its reverse (133553314361), we get a palindrome (296966669692).

The spelling of 163413355331 in words is "one hundred sixty-three billion, four hundred thirteen million, three hundred fifty-five thousand, three hundred thirty-one".