6564430129 has 2 divisors, whose sum is σ = 6564430130. Its totient is φ = 6564430128.

The previous prime is 6564429967. The next prime is 6564430139. The reversal of 6564430129 is 9210344656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5391230625 + 1173199504 = 73425^2 + 34252^2 .

It is a cyclic number.

It is not a de Polignac number, because 6564430129 - 2¹⁹ = 6563905841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6564430091 and 6564430100.

It is not a weakly prime, because it can be changed into another prime (6564430139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282215064 + 3282215065.

It is an arithmetic number, because the mean of its divisors is an integer number (3282215065).

Almost surely, 2^6564430129 is an apocalyptic number.

It is an amenable number.

6564430129 is a deficient number, since it is larger than the sum of its proper divisors (1).

6564430129 is an equidigital number, since it uses as much as digits as its factorization.

6564430129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 6564430129 is about 81021.1708691006. The cubic root of 6564430129 is about 1872.4016278892.

The spelling of 6564430129 in words is "six billion, five hundred sixty-four million, four hundred thirty thousand, one hundred twenty-nine".