163565104325 has 48 divisors (see below), whose sum is σ = 256101108480. Its totient is φ = 100971678720.

The previous prime is 163565104309. The next prime is 163565104337. The reversal of 163565104325 is 523401565361.

163565104325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163565104325 - 2⁴ = 163565104309 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 47 ways as a sum of consecutive naturals, for example, 1126790 + ... + 1263639.

It is an arithmetic number, because the mean of its divisors is an integer number (5335439760).

Almost surely, 2^163565104325 is an apocalyptic number.

It is an amenable number.

163565104325 is a deficient number, since it is larger than the sum of its proper divisors (92536004155).

163565104325 is a wasteful number, since it uses less digits than its factorization.

163565104325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390486 (or 2390481 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 163565104325 its reverse (523401565361), we get a palindrome (686966669686).

The spelling of 163565104325 in words is "one hundred sixty-three billion, five hundred sixty-five million, one hundred four thousand, three hundred twenty-five".