65344340329 has 2 divisors, whose sum is σ = 65344340330. Its totient is φ = 65344340328.

The previous prime is 65344340251. The next prime is 65344340339. The reversal of 65344340329 is 92304344356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65306824704 + 37515625 = 255552^2 + 6125^2 .

It is a cyclic number.

It is not a de Polignac number, because 65344340329 - 2¹⁷ = 65344209257 is a prime.

It is not a weakly prime, because it can be changed into another prime (65344340339) 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, 32672170164 + 32672170165.

It is an arithmetic number, because the mean of its divisors is an integer number (32672170165).

Almost surely, 2^65344340329 is an apocalyptic number.

It is an amenable number.

65344340329 is a deficient number, since it is larger than the sum of its proper divisors (1).

65344340329 is an equidigital number, since it uses as much as digits as its factorization.

65344340329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 65344340329 in words is "sixty-five billion, three hundred forty-four million, three hundred forty thousand, three hundred twenty-nine".