6655566311 has 2 divisors, whose sum is σ = 6655566312. Its totient is φ = 6655566310.

The previous prime is 6655566301. The next prime is 6655566361. The reversal of 6655566311 is 1136655566.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6655566311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6655566301) 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 as a sum of consecutive naturals, namely, 3327783155 + 3327783156.

It is an arithmetic number, because the mean of its divisors is an integer number (3327783156).

Almost surely, 2^6655566311 is an apocalyptic number.

6655566311 is a deficient number, since it is larger than the sum of its proper divisors (1).

6655566311 is an equidigital number, since it uses as much as digits as its factorization.

6655566311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486000, while the sum is 44.

The square root of 6655566311 is about 81581.6542551081. The cubic root of 6655566311 is about 1881.0268940012.

The spelling of 6655566311 in words is "six billion, six hundred fifty-five million, five hundred sixty-six thousand, three hundred eleven".