163525106989 has 2 divisors, whose sum is σ = 163525106990. Its totient is φ = 163525106988.

The previous prime is 163525106917. The next prime is 163525107029. The reversal of 163525106989 is 989601525361.

163525106989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131674636900 + 31850470089 = 362870^2 + 178467^2 .

It is a cyclic number.

It is not a de Polignac number, because 163525106989 - 2¹⁹ = 163524582701 is a prime.

It is a super-2 number, since 2×163525106989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163525106489) 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, 81762553494 + 81762553495.

It is an arithmetic number, because the mean of its divisors is an integer number (81762553495).

Almost surely, 2^163525106989 is an apocalyptic number.

It is an amenable number.

163525106989 is a deficient number, since it is larger than the sum of its proper divisors (1).

163525106989 is an equidigital number, since it uses as much as digits as its factorization.

163525106989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 163525106989 in words is "one hundred sixty-three billion, five hundred twenty-five million, one hundred six thousand, nine hundred eighty-nine".