6566651022343 has 2 divisors, whose sum is σ = 6566651022344. Its totient is φ = 6566651022342.

The previous prime is 6566651022341. The next prime is 6566651022397. The reversal of 6566651022343 is 3432201566656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6566651022343 - 2¹ = 6566651022341 is a prime.

Together with 6566651022341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6566651022341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3283325511171 + 3283325511172.

It is an arithmetic number, because the mean of its divisors is an integer number (3283325511172).

Almost surely, 2^{6566651022343} is an apocalyptic number.

6566651022343 is a deficient number, since it is larger than the sum of its proper divisors (1).

6566651022343 is an equidigital number, since it uses as much as digits as its factorization.

6566651022343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 49.

Adding to 6566651022343 its reverse (3432201566656), we get a palindrome (9998852588999).

The spelling of 6566651022343 in words is "six trillion, five hundred sixty-six billion, six hundred fifty-one million, twenty-two thousand, three hundred forty-three".