65943760241 has 2 divisors, whose sum is σ = 65943760242. Its totient is φ = 65943760240.

The previous prime is 65943760229. The next prime is 65943760271. The reversal of 65943760241 is 14206734956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63249735025 + 2694025216 = 251495^2 + 51904^2 .

It is a cyclic number.

It is not a de Polignac number, because 65943760241 - 2⁶ = 65943760177 is a prime.

It is not a weakly prime, because it can be changed into another prime (65943760271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32971880120 + 32971880121.

It is an arithmetic number, because the mean of its divisors is an integer number (32971880121).

Almost surely, 2^65943760241 is an apocalyptic number.

It is an amenable number.

65943760241 is a deficient number, since it is larger than the sum of its proper divisors (1).

65943760241 is an equidigital number, since it uses as much as digits as its factorization.

65943760241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 65943760241 in words is "sixty-five billion, nine hundred forty-three million, seven hundred sixty thousand, two hundred forty-one".