6660211113 has 12 divisors (see below), whose sum is σ = 10126637040. Its totient is φ = 4206449016.

The previous prime is 6660211109. The next prime is 6660211127. The reversal of 6660211113 is 3111120666.

It is not a de Polignac number, because 6660211113 - 2² = 6660211109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6660211153) 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 11 ways as a sum of consecutive naturals, for example, 19474131 + ... + 19474472.

It is an arithmetic number, because the mean of its divisors is an integer number (843886420).

Almost surely, 2^6660211113 is an apocalyptic number.

It is an amenable number.

6660211113 is a deficient number, since it is larger than the sum of its proper divisors (3466425927).

6660211113 is a wasteful number, since it uses less digits than its factorization.

6660211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38948628 (or 38948625 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 6660211113 is about 81610.1164868670. The cubic root of 6660211113 is about 1881.4643707133.

Adding to 6660211113 its reverse (3111120666), we get a palindrome (9771331779).

The spelling of 6660211113 in words is "six billion, six hundred sixty million, two hundred eleven thousand, one hundred thirteen".