663330543 has 16 divisors (see below), whose sum is σ = 915602400. Its totient is φ = 426661760.

The previous prime is 663330539. The next prime is 663330553. The reversal of 663330543 is 345033366.

It is a cyclic number.

It is not a de Polignac number, because 663330543 - 2² = 663330539 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663330533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226573 + ... + 229481.

It is an arithmetic number, because the mean of its divisors is an integer number (57225150).

Almost surely, 2^663330543 is an apocalyptic number.

663330543 is a deficient number, since it is larger than the sum of its proper divisors (252271857).

663330543 is a wasteful number, since it uses less digits than its factorization.

663330543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562.

The product of its (nonzero) digits is 58320, while the sum is 33.

The square root of 663330543 is about 25755.2041925511. The cubic root of 663330543 is about 872.1208410478.

The spelling of 663330543 in words is "six hundred sixty-three million, three hundred thirty thousand, five hundred forty-three".