163085141561 has 2 divisors, whose sum is σ = 163085141562. Its totient is φ = 163085141560.

The previous prime is 163085141497. The next prime is 163085141719. The reversal of 163085141561 is 165141580361.

163085141561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162787233961 + 297907600 = 403469^2 + 17260^2 .

It is an emirp because it is prime and its reverse (165141580361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163085141561 - 2⁶ = 163085141497 is a prime.

It is not a weakly prime, because it can be changed into another prime (163085141161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81542570780 + 81542570781.

It is an arithmetic number, because the mean of its divisors is an integer number (81542570781).

Almost surely, 2^163085141561 is an apocalyptic number.

It is an amenable number.

163085141561 is a deficient number, since it is larger than the sum of its proper divisors (1).

163085141561 is an equidigital number, since it uses as much as digits as its factorization.

163085141561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 163085141561 in words is "one hundred sixty-three billion, eighty-five million, one hundred forty-one thousand, five hundred sixty-one".