325603566163 has 4 divisors (see below), whose sum is σ = 325693590120. Its totient is φ = 325513542208.

The previous prime is 325603566157. The next prime is 325603566187. The reversal of 325603566163 is 361665306523.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325603566163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325603566263) 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, 45006553 + ... + 45013786.

It is an arithmetic number, because the mean of its divisors is an integer number (81423397530).

Almost surely, 2^325603566163 is an apocalyptic number.

325603566163 is a deficient number, since it is larger than the sum of its proper divisors (90023957).

325603566163 is an equidigital number, since it uses as much as digits as its factorization.

325603566163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90023956.

The product of its (nonzero) digits is 1749600, while the sum is 46.

The spelling of 325603566163 in words is "three hundred twenty-five billion, six hundred three million, five hundred sixty-six thousand, one hundred sixty-three".