6655100813 has 2 divisors, whose sum is σ = 6655100814. Its totient is φ = 6655100812.

The previous prime is 6655100773. The next prime is 6655100869. The reversal of 6655100813 is 3180015566.

6655100813 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., 5944718404 + 710382409 = 77102^2 + 26653^2 .

It is a cyclic number.

It is not a de Polignac number, because 6655100813 - 2²⁸ = 6386665357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6655100713) 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, 3327550406 + 3327550407.

It is an arithmetic number, because the mean of its divisors is an integer number (3327550407).

Almost surely, 2^6655100813 is an apocalyptic number.

It is an amenable number.

6655100813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6655100813 is an equidigital number, since it uses as much as digits as its factorization.

6655100813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 6655100813 is about 81578.8012476281. The cubic root of 6655100813 is about 1880.9830392471.

The spelling of 6655100813 in words is "six billion, six hundred fifty-five million, one hundred thousand, eight hundred thirteen".