65167216193 has 2 divisors, whose sum is σ = 65167216194. Its totient is φ = 65167216192.

The previous prime is 65167216171. The next prime is 65167216211. The reversal of 65167216193 is 39161276156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64573416769 + 593799424 = 254113^2 + 24368^2 .

It is a cyclic number.

It is not a de Polignac number, because 65167216193 - 2³⁰ = 64093474369 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65167216693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32583608096 + 32583608097.

It is an arithmetic number, because the mean of its divisors is an integer number (32583608097).

Almost surely, 2^65167216193 is an apocalyptic number.

It is an amenable number.

65167216193 is a deficient number, since it is larger than the sum of its proper divisors (1).

65167216193 is an equidigital number, since it uses as much as digits as its factorization.

65167216193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The spelling of 65167216193 in words is "sixty-five billion, one hundred sixty-seven million, two hundred sixteen thousand, one hundred ninety-three".