163108585841 has 4 divisors (see below), whose sum is σ = 163684941552. Its totient is φ = 162532230132.

The previous prime is 163108585819. The next prime is 163108585901. The reversal of 163108585841 is 148585801361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148585801361 = 8689 ⋅17100449.

It is a cyclic number.

It is not a de Polignac number, because 163108585841 - 2⁶ = 163108585777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163108585841.

It is not an unprimeable number, because it can be changed into a prime (163108582841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288177431 + ... + 288177996.

It is an arithmetic number, because the mean of its divisors is an integer number (40921235388).

Almost surely, 2^163108585841 is an apocalyptic number.

It is an amenable number.

163108585841 is a deficient number, since it is larger than the sum of its proper divisors (576355711).

163108585841 is an equidigital number, since it uses as much as digits as its factorization.

163108585841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576355710.

The product of its (nonzero) digits is 921600, while the sum is 50.

The spelling of 163108585841 in words is "one hundred sixty-three billion, one hundred eight million, five hundred eighty-five thousand, eight hundred forty-one".