66016065056593 has 2 divisors, whose sum is σ = 66016065056594. Its totient is φ = 66016065056592.

The previous prime is 66016065056587. The next prime is 66016065056671. The reversal of 66016065056593 is 39565056061066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39727393003089 + 26288672053504 = 6302967^2 + 5127248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66016065056593 is a prime.

It is not a weakly prime, because it can be changed into another prime (66016065056503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33008032528296 + 33008032528297.

It is an arithmetic number, because the mean of its divisors is an integer number (33008032528297).

Almost surely, 2^{66016065056593} is an apocalyptic number.

It is an amenable number.

66016065056593 is a deficient number, since it is larger than the sum of its proper divisors (1).

66016065056593 is an equidigital number, since it uses as much as digits as its factorization.

66016065056593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244000, while the sum is 58.

The spelling of 66016065056593 in words is "sixty-six trillion, sixteen billion, sixty-five million, fifty-six thousand, five hundred ninety-three".