663650463 has 32 divisors (see below), whose sum is σ = 1059865600. Its totient is φ = 368958240.

The previous prime is 663650459. The next prime is 663650501. The reversal of 663650463 is 364056366.

It is a happy number.

663650463 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 663650463 - 2² = 663650459 is a prime.

It is a super-2 number, since 2×663650463² = 880863874080228738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663650443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29358 + ... + 46788.

It is an arithmetic number, because the mean of its divisors is an integer number (33120800).

Almost surely, 2^663650463 is an apocalyptic number.

663650463 is a deficient number, since it is larger than the sum of its proper divisors (396215137).

663650463 is a wasteful number, since it uses less digits than its factorization.

663650463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17492 (or 17478 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 39.

The square root of 663650463 is about 25761.4142274837. The cubic root of 663650463 is about 872.2610245806.

The spelling of 663650463 in words is "six hundred sixty-three million, six hundred fifty thousand, four hundred sixty-three".