663464366 has 8 divisors (see below), whose sum is σ = 995483280. Its totient is φ = 331636608.

The previous prime is 663464359. The next prime is 663464377.

It is a happy number.

663464366 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×663464366³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 38771 + ... + 53198.

It is an arithmetic number, because the mean of its divisors is an integer number (124435410).

Almost surely, 2^663464366 is an apocalyptic number.

663464366 is a deficient number, since it is larger than the sum of its proper divisors (332018914).

663464366 is a wasteful number, since it uses less digits than its factorization.

663464366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95578.

The product of its digits is 1119744, while the sum is 44.

The square root of 663464366 is about 25757.8020413233. The cubic root of 663464366 is about 872.1794855054.

The spelling of 663464366 in words is "six hundred sixty-three million, four hundred sixty-four thousand, three hundred sixty-six".