663343266 has 8 divisors (see below), whose sum is σ = 1326686544. Its totient is φ = 221114420.

The previous prime is 663343249. The next prime is 663343267. The reversal of 663343266 is 662343366.

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

663343266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (663343267) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55278600 + ... + 55278611.

It is an arithmetic number, because the mean of its divisors is an integer number (165835818).

Almost surely, 2^663343266 is an apocalyptic number.

663343266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663343266 is a wasteful number, since it uses less digits than its factorization.

663343266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110557216.

The product of its digits is 279936, while the sum is 39.

The square root of 663343266 is about 25755.4511899908. The cubic root of 663343266 is about 872.1264169117.

The spelling of 663343266 in words is "six hundred sixty-three million, three hundred forty-three thousand, two hundred sixty-six".