663633063 has 12 divisors (see below), whose sum is σ = 1014968448. Its totient is φ = 416397120.

The previous prime is 663633043. The next prime is 663633077. The reversal of 663633063 is 360336366.

It is not a de Polignac number, because 663633063 - 2⁸ = 663632807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663633023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2168583 + ... + 2168888.

It is an arithmetic number, because the mean of its divisors is an integer number (84580704).

Almost surely, 2^663633063 is an apocalyptic number.

663633063 is a deficient number, since it is larger than the sum of its proper divisors (351335385).

663633063 is a wasteful number, since it uses less digits than its factorization.

663633063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337494 (or 4337491 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 36.

The square root of 663633063 is about 25761.0765108914. The cubic root of 663633063 is about 872.2534013536.

The spelling of 663633063 in words is "six hundred sixty-three million, six hundred thirty-three thousand, sixty-three".