6648345413 has 2 divisors, whose sum is σ = 6648345414. Its totient is φ = 6648345412.

The previous prime is 6648345367. The next prime is 6648345421. The reversal of 6648345413 is 3145438466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6523308289 + 125037124 = 80767^2 + 11182^2 .

It is a cyclic number.

It is not a de Polignac number, because 6648345413 - 2¹⁶ = 6648279877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6648345443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3324172706 + 3324172707.

It is an arithmetic number, because the mean of its divisors is an integer number (3324172707).

Almost surely, 2^6648345413 is an apocalyptic number.

It is an amenable number.

6648345413 is a deficient number, since it is larger than the sum of its proper divisors (1).

6648345413 is an equidigital number, since it uses as much as digits as its factorization.

6648345413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 44.

The square root of 6648345413 is about 81537.3865965791. The cubic root of 6648345413 is about 1880.3463799868.

The spelling of 6648345413 in words is "six billion, six hundred forty-eight million, three hundred forty-five thousand, four hundred thirteen".