163103266 has 4 divisors (see below), whose sum is σ = 244654902. Its totient is φ = 81551632.

The previous prime is 163103261. The next prime is 163103293. The reversal of 163103266 is 662301361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 662301361 = 1381 ⋅479581.

It can be written as a sum of positive squares in only one way, i.e., 121771225 + 41332041 = 11035^2 + 6429^2 .

It is not an unprimeable number, because it can be changed into a prime (163103261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40775815 + ... + 40775818.

Almost surely, 2^163103266 is an apocalyptic number.

163103266 is a deficient number, since it is larger than the sum of its proper divisors (81551636).

163103266 is an equidigital number, since it uses as much as digits as its factorization.

163103266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81551635.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 163103266 is about 12771.1889031523. The cubic root of 163103266 is about 546.3708898850.

The spelling of 163103266 in words is "one hundred sixty-three million, one hundred three thousand, two hundred sixty-six".