163316503 has 8 divisors (see below), whose sum is σ = 187486208. Its totient is φ = 139356504.

The previous prime is 163316477. The next prime is 163316567. The reversal of 163316503 is 305613361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163316503 - 2⁵ = 163316471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163316003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50751 + ... + 53872.

It is an arithmetic number, because the mean of its divisors is an integer number (23435776).

Almost surely, 2^163316503 is an apocalyptic number.

163316503 is a deficient number, since it is larger than the sum of its proper divisors (24169705).

163316503 is a wasteful number, since it uses less digits than its factorization.

163316503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104853.

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

The square root of 163316503 is about 12779.5345376895. The cubic root of 163316503 is about 546.6088899296.

Adding to 163316503 its reverse (305613361), we get a palindrome (468929864).

The spelling of 163316503 in words is "one hundred sixty-three million, three hundred sixteen thousand, five hundred three".