65841315013 has 2 divisors, whose sum is σ = 65841315014. Its totient is φ = 65841315012.

The previous prime is 65841314999. The next prime is 65841315031. The reversal of 65841315013 is 31051314856.

Together with next prime (65841315031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54139051684 + 11702263329 = 232678^2 + 108177^2 .

It is a cyclic number.

It is not a de Polignac number, because 65841315013 - 2²⁵ = 65807760581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65841325013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32920657506 + 32920657507.

It is an arithmetic number, because the mean of its divisors is an integer number (32920657507).

Almost surely, 2^65841315013 is an apocalyptic number.

It is an amenable number.

65841315013 is a deficient number, since it is larger than the sum of its proper divisors (1).

65841315013 is an equidigital number, since it uses as much as digits as its factorization.

65841315013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

Adding to 65841315013 its reverse (31051314856), we get a palindrome (96892629869).

The spelling of 65841315013 in words is "sixty-five billion, eight hundred forty-one million, three hundred fifteen thousand, thirteen".