65320061 has 2 divisors, whose sum is σ = 65320062. Its totient is φ = 65320060.

The previous prime is 65320051. The next prime is 65320063. The reversal of 65320061 is 16002356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42328036 + 22992025 = 6506^2 + 4795^2 .

It is a cyclic number.

It is not a de Polignac number, because 65320061 - 2⁶ = 65319997 is a prime.

Together with 65320063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65320063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32660030 + 32660031.

It is an arithmetic number, because the mean of its divisors is an integer number (32660031).

Almost surely, 2^65320061 is an apocalyptic number.

It is an amenable number.

65320061 is a deficient number, since it is larger than the sum of its proper divisors (1).

65320061 is an equidigital number, since it uses as much as digits as its factorization.

65320061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 65320061 is about 8082.0827142513. The cubic root of 65320061 is about 402.7314328151.

The spelling of 65320061 in words is "sixty-five million, three hundred twenty thousand, sixty-one".