663774163 has 16 divisors (see below), whose sum is σ = 757796256. Its totient is φ = 575976960.

The previous prime is 663774161. The next prime is 663774229. The reversal of 663774163 is 361477366.

663774163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 663774163 - 2¹ = 663774161 is a prime.

It is a super-2 number, since 2×663774163² = 881192278932701138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663774161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282373 + ... + 284713.

It is an arithmetic number, because the mean of its divisors is an integer number (47362266).

Almost surely, 2^663774163 is an apocalyptic number.

663774163 is a deficient number, since it is larger than the sum of its proper divisors (94022093).

663774163 is a wasteful number, since it uses less digits than its factorization.

663774163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654.

The product of its digits is 381024, while the sum is 43.

The square root of 663774163 is about 25763.8149931255. The cubic root of 663774163 is about 872.3152157508.

The spelling of 663774163 in words is "six hundred sixty-three million, seven hundred seventy-four thousand, one hundred sixty-three".