6620260217 has 2 divisors, whose sum is σ = 6620260218. Its totient is φ = 6620260216.

The previous prime is 6620260181. The next prime is 6620260267. The reversal of 6620260217 is 7120620266.

6620260217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6413447056 + 206813161 = 80084^2 + 14381^2 .

It is a cyclic number.

It is not a de Polignac number, because 6620260217 - 2²⁸ = 6351824761 is a prime.

It is not a weakly prime, because it can be changed into another prime (6620260267) 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 as a sum of consecutive naturals, namely, 3310130108 + 3310130109.

It is an arithmetic number, because the mean of its divisors is an integer number (3310130109).

Almost surely, 2^6620260217 is an apocalyptic number.

It is an amenable number.

6620260217 is a deficient number, since it is larger than the sum of its proper divisors (1).

6620260217 is an equidigital number, since it uses as much as digits as its factorization.

6620260217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 6620260217 is about 81364.9815153915. The cubic root of 6620260217 is about 1877.6948714015.

The spelling of 6620260217 in words is "six billion, six hundred twenty million, two hundred sixty thousand, two hundred seventeen".