65044032617 has 2 divisors, whose sum is σ = 65044032618. Its totient is φ = 65044032616.

The previous prime is 65044032551. The next prime is 65044032709. The reversal of 65044032617 is 71623044056.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34144017961 + 30900014656 = 184781^2 + 175784^2 .

It is a cyclic number.

It is not a de Polignac number, because 65044032617 - 2¹² = 65044028521 is a prime.

It is not a weakly prime, because it can be changed into another prime (65046032617) 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, 32522016308 + 32522016309.

It is an arithmetic number, because the mean of its divisors is an integer number (32522016309).

Almost surely, 2^65044032617 is an apocalyptic number.

It is an amenable number.

65044032617 is a deficient number, since it is larger than the sum of its proper divisors (1).

65044032617 is an equidigital number, since it uses as much as digits as its factorization.

65044032617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 65044032617 in words is "sixty-five billion, forty-four million, thirty-two thousand, six hundred seventeen".