65613405041 has 2 divisors, whose sum is σ = 65613405042. Its totient is φ = 65613405040.

The previous prime is 65613405031. The next prime is 65613405059. The reversal of 65613405041 is 14050431656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65466898225 + 146506816 = 255865^2 + 12104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65613405041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65613404992 and 65613405010.

It is not a weakly prime, because it can be changed into another prime (65613405031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32806702520 + 32806702521.

It is an arithmetic number, because the mean of its divisors is an integer number (32806702521).

Almost surely, 2^65613405041 is an apocalyptic number.

It is an amenable number.

65613405041 is a deficient number, since it is larger than the sum of its proper divisors (1).

65613405041 is an equidigital number, since it uses as much as digits as its factorization.

65613405041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 65613405041 its reverse (14050431656), we get a palindrome (79663836697).

The spelling of 65613405041 in words is "sixty-five billion, six hundred thirteen million, four hundred five thousand, forty-one".