65271651161 has 2 divisors, whose sum is σ = 65271651162. Its totient is φ = 65271651160.

The previous prime is 65271651091. The next prime is 65271651163. The reversal of 65271651161 is 16115617256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49303537936 + 15968113225 = 222044^2 + 126365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65271651161 is a prime.

Together with 65271651163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65271651163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32635825580 + 32635825581.

It is an arithmetic number, because the mean of its divisors is an integer number (32635825581).

Almost surely, 2^65271651161 is an apocalyptic number.

It is an amenable number.

65271651161 is a deficient number, since it is larger than the sum of its proper divisors (1).

65271651161 is an equidigital number, since it uses as much as digits as its factorization.

65271651161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 41.

The spelling of 65271651161 in words is "sixty-five billion, two hundred seventy-one million, six hundred fifty-one thousand, one hundred sixty-one".