663103172 has 18 divisors (see below), whose sum is σ = 1188058158. Its totient is φ = 323837472.

The previous prime is 663103121. The next prime is 663103187. The reversal of 663103172 is 271301366.

It can be written as a sum of positive squares in only one way, i.e., 661209796 + 1893376 = 25714^2 + 1376^2 .

It is a super-3 number, since 3×663103172³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 37433 + ... + 52224.

It is an arithmetic number, because the mean of its divisors is an integer number (66003231).

Almost surely, 2^663103172 is an apocalyptic number.

It is an amenable number.

663103172 is a deficient number, since it is larger than the sum of its proper divisors (524954986).

663103172 is a wasteful number, since it uses less digits than its factorization.

663103172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89747 (or 89702 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 663103172 is about 25750.7897354625. The cubic root of 663103172 is about 872.0211835187.

The spelling of 663103172 in words is "six hundred sixty-three million, one hundred three thousand, one hundred seventy-two".