663203640040330 has 16 divisors (see below), whose sum is σ = 1204923248822880. Its totient is φ = 262802190071632.

The previous prime is 663203640040303. The next prime is 663203640040397. The reversal of 663203640040330 is 33040046302366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309908241940 + ... + 309908244079.

It is an arithmetic number, because the mean of its divisors is an integer number (75307703051430).

Almost surely, 2^{663203640040330} is an apocalyptic number.

663203640040330 is a deficient number, since it is larger than the sum of its proper divisors (541719608782550).

663203640040330 is a wasteful number, since it uses less digits than its factorization.

663203640040330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619816486133.

The product of its (nonzero) digits is 559872, while the sum is 40.

Adding to 663203640040330 its reverse (33040046302366), we get a palindrome (696243686342696).

The spelling of 663203640040330 in words is "six hundred sixty-three trillion, two hundred three billion, six hundred forty million, forty thousand, three hundred thirty".