6566430361 has 2 divisors, whose sum is σ = 6566430362. Its totient is φ = 6566430360.

The previous prime is 6566430347. The next prime is 6566430391. The reversal of 6566430361 is 1630346656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3949494025 + 2616936336 = 62845^2 + 51156^2 .

It is a cyclic number.

It is not a de Polignac number, because 6566430361 - 2³¹ = 4418946713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6566430331) 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, 3283215180 + 3283215181.

It is an arithmetic number, because the mean of its divisors is an integer number (3283215181).

Almost surely, 2^6566430361 is an apocalyptic number.

It is an amenable number.

6566430361 is a deficient number, since it is larger than the sum of its proper divisors (1).

6566430361 is an equidigital number, since it uses as much as digits as its factorization.

6566430361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 6566430361 is about 81033.5138137302. The cubic root of 6566430361 is about 1872.5917869354.

The spelling of 6566430361 in words is "six billion, five hundred sixty-six million, four hundred thirty thousand, three hundred sixty-one".