6620110313 has 4 divisors (see below), whose sum is σ = 6680845380. Its totient is φ = 6559375248.

The previous prime is 6620110297. The next prime is 6620110319. The reversal of 6620110313 is 3130110266.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4050431449 + 2569678864 = 63643^2 + 50692^2 .

It is a cyclic number.

It is not a de Polignac number, because 6620110313 - 2⁴ = 6620110297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6620110319) 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 3 ways as a sum of consecutive naturals, for example, 30367370 + ... + 30367587.

It is an arithmetic number, because the mean of its divisors is an integer number (1670211345).

Almost surely, 2^6620110313 is an apocalyptic number.

It is an amenable number.

6620110313 is a deficient number, since it is larger than the sum of its proper divisors (60735067).

6620110313 is a wasteful number, since it uses less digits than its factorization.

6620110313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60735066.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 6620110313 is about 81364.0603276410. The cubic root of 6620110313 is about 1877.6806989426.

Adding to 6620110313 its reverse (3130110266), we get a palindrome (9750220579).

The spelling of 6620110313 in words is "six billion, six hundred twenty million, one hundred ten thousand, three hundred thirteen".