6660303553323 has 24 divisors (see below), whose sum is σ = 11050037024000. Its totient is φ = 3786762673584.

The previous prime is 6660303553313. The next prime is 6660303553369. The reversal of 6660303553323 is 3233553030666.

It is not a de Polignac number, because 6660303553323 - 2¹⁷ = 6660303422251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6660303553313) 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 23 ways as a sum of consecutive naturals, for example, 265613353 + ... + 265638426.

Almost surely, 2^{6660303553323} is an apocalyptic number.

6660303553323 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6660303553323 is a deficient number, since it is larger than the sum of its proper divisors (4389733470677).

6660303553323 is a wasteful number, since it uses less digits than its factorization.

6660303553323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531251991 (or 531251988 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 45.

Adding to 6660303553323 its reverse (3233553030666), we get a palindrome (9893856583989).

The spelling of 6660303553323 in words is "six trillion, six hundred sixty billion, three hundred three million, five hundred fifty-three thousand, three hundred twenty-three".