65036161 has 2 divisors, whose sum is σ = 65036162. Its totient is φ = 65036160.

The previous prime is 65036159. The next prime is 65036177. The reversal of 65036161 is 16163056.

65036161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49787136 + 15249025 = 7056^2 + 3905^2 .

It is a cyclic number.

It is not a de Polignac number, because 65036161 - 2¹ = 65036159 is a prime.

It is a super-3 number, since 3×65036161³ (a number of 24 digits) contains 333 as substring.

Together with 65036159, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is the 8065-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (65066161) by changing a digit.

It is a nontrivial repunit in base 8064.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32518080 + 32518081.

It is an arithmetic number, because the mean of its divisors is an integer number (32518081).

Almost surely, 2^65036161 is an apocalyptic number.

It is an amenable number.

65036161 is a deficient number, since it is larger than the sum of its proper divisors (1).

65036161 is an equidigital number, since it uses as much as digits as its factorization.

65036161 is an odious number, because the sum of its binary digits is odd.

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

The square root of 65036161 is about 8064.5000465001. The cubic root of 65036161 is about 402.1471227874.

The spelling of 65036161 in words is "sixty-five million, thirty-six thousand, one hundred sixty-one".