163305163 has 4 divisors (see below), whose sum is σ = 186634480. Its totient is φ = 139975848.

The previous prime is 163305089. The next prime is 163305169. The reversal of 163305163 is 361503361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361503361 = 3929 ⋅92009.

It is a cyclic number.

It is not a de Polignac number, because 163305163 - 2¹³ = 163296971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163305169) 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, 11664648 + ... + 11664661.

It is an arithmetic number, because the mean of its divisors is an integer number (46658620).

Almost surely, 2^163305163 is an apocalyptic number.

163305163 is a deficient number, since it is larger than the sum of its proper divisors (23329317).

163305163 is an equidigital number, since it uses as much as digits as its factorization.

163305163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23329316.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 163305163 is about 12779.0908518564. The cubic root of 163305163 is about 546.5962382417.

The spelling of 163305163 in words is "one hundred sixty-three million, three hundred five thousand, one hundred sixty-three".