6661320333 has 8 divisors (see below), whose sum is σ = 9349221600. Its totient is φ = 4207149648.

The previous prime is 6661320319. The next prime is 6661320349. The reversal of 6661320333 is 3330231666.

6661320333 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6661320333 - 2⁵ = 6661320301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6661320294 and 6661320303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661321333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58432578 + ... + 58432691.

It is an arithmetic number, because the mean of its divisors is an integer number (1168652700).

Almost surely, 2^6661320333 is an apocalyptic number.

It is an amenable number.

6661320333 is a deficient number, since it is larger than the sum of its proper divisors (2687901267).

6661320333 is a wasteful number, since it uses less digits than its factorization.

6661320333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116865291.

The product of its (nonzero) digits is 34992, while the sum is 33.

The square root of 6661320333 is about 81616.9120525887. The cubic root of 6661320333 is about 1881.5688139523.

Adding to 6661320333 its reverse (3330231666), we get a palindrome (9991551999).

The spelling of 6661320333 in words is "six billion, six hundred sixty-one million, three hundred twenty thousand, three hundred thirty-three".