163366803 has 12 divisors (see below), whose sum is σ = 242352448. Its totient is φ = 105967440.

The previous prime is 163366789. The next prime is 163366817. The reversal of 163366803 is 308663361.

It is an interprime number because it is at equal distance from previous prime (163366789) and next prime (163366817).

It is not a de Polignac number, because 163366803 - 2⁵ = 163366771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163366823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244963 + ... + 245628.

Almost surely, 2^163366803 is an apocalyptic number.

163366803 is a deficient number, since it is larger than the sum of its proper divisors (78985645).

163366803 is a wasteful number, since it uses less digits than its factorization.

163366803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490634 (or 490631 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 163366803 is about 12781.5023764814. The cubic root of 163366803 is about 546.6650010277.

The spelling of 163366803 in words is "one hundred sixty-three million, three hundred sixty-six thousand, eight hundred three".