663234066 has 24 divisors (see below), whose sum is σ = 1567644624. Its totient is φ = 200979960.

The previous prime is 663234059. The next prime is 663234067. The reversal of 663234066 is 660432366.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 663234066.

It is not an unprimeable number, because it can be changed into a prime (663234067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1674636 + ... + 1675031.

It is an arithmetic number, because the mean of its divisors is an integer number (65318526).

Almost surely, 2^663234066 is an apocalyptic number.

663234066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

663234066 is an abundant number, since it is smaller than the sum of its proper divisors (904410558).

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

663234066 is a wasteful number, since it uses less digits than its factorization.

663234066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349686 (or 3349683 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The square root of 663234066 is about 25753.3311631719. The cubic root of 663234066 is about 872.0785576127.

The spelling of 663234066 in words is "six hundred sixty-three million, two hundred thirty-four thousand, sixty-six".