65444052073 has 2 divisors, whose sum is σ = 65444052074. Its totient is φ = 65444052072.

The previous prime is 65444052061. The next prime is 65444052109. The reversal of 65444052073 is 37025044456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63868914729 + 1575137344 = 252723^2 + 39688^2 .

It is a cyclic number.

It is not a de Polignac number, because 65444052073 - 2¹³ = 65444043881 is a prime.

It is not a weakly prime, because it can be changed into another prime (65444052173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32722026036 + 32722026037.

It is an arithmetic number, because the mean of its divisors is an integer number (32722026037).

Almost surely, 2^65444052073 is an apocalyptic number.

It is an amenable number.

65444052073 is a deficient number, since it is larger than the sum of its proper divisors (1).

65444052073 is an equidigital number, since it uses as much as digits as its factorization.

65444052073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 65444052073 in words is "sixty-five billion, four hundred forty-four million, fifty-two thousand, seventy-three".