65243162533 has 2 divisors, whose sum is σ = 65243162534. Its totient is φ = 65243162532.

The previous prime is 65243162489. The next prime is 65243162561. The reversal of 65243162533 is 33526134256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62781315844 + 2461846689 = 250562^2 + 49617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65243162533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65243162573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32621581266 + 32621581267.

It is an arithmetic number, because the mean of its divisors is an integer number (32621581267).

Almost surely, 2^65243162533 is an apocalyptic number.

It is an amenable number.

65243162533 is a deficient number, since it is larger than the sum of its proper divisors (1).

65243162533 is an equidigital number, since it uses as much as digits as its factorization.

65243162533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 40.

Adding to 65243162533 its reverse (33526134256), we get a palindrome (98769296789).

The spelling of 65243162533 in words is "sixty-five billion, two hundred forty-three million, one hundred sixty-two thousand, five hundred thirty-three".