6699910321 has 8 divisors (see below), whose sum is σ = 7595040320. Its totient is φ = 5859030672.

The previous prime is 6699910297. The next prime is 6699910331. The reversal of 6699910321 is 1230199966.

6699910321 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 a cyclic number.

It is not a de Polignac number, because 6699910321 - 2¹³ = 6699902129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6699910331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13562325 + ... + 13562818.

It is an arithmetic number, because the mean of its divisors is an integer number (949380040).

Almost surely, 2^6699910321 is an apocalyptic number.

It is an amenable number.

6699910321 is a deficient number, since it is larger than the sum of its proper divisors (895129999).

6699910321 is a wasteful number, since it uses less digits than its factorization.

6699910321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27125175.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 6699910321 is about 81852.9799152114. The cubic root of 6699910321 is about 1885.1952198802.

The spelling of 6699910321 in words is "six billion, six hundred ninety-nine million, nine hundred ten thousand, three hundred twenty-one".