65360161 has 2 divisors, whose sum is σ = 65360162. Its totient is φ = 65360160.

The previous prime is 65360159. The next prime is 65360233. The reversal of 65360161 is 16106356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65302561 + 57600 = 8081^2 + 240^2 .

It is a cyclic number.

It is not a de Polignac number, because 65360161 - 2¹ = 65360159 is a prime.

Together with 65360159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65360101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32680080 + 32680081.

It is an arithmetic number, because the mean of its divisors is an integer number (32680081).

Almost surely, 2^65360161 is an apocalyptic number.

It is an amenable number.

65360161 is a deficient number, since it is larger than the sum of its proper divisors (1).

65360161 is an equidigital number, since it uses as much as digits as its factorization.

65360161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 65360161 is about 8084.5631298172. The cubic root of 65360161 is about 402.8138282620.

The spelling of 65360161 in words is "sixty-five million, three hundred sixty thousand, one hundred sixty-one".