66042893706263 has 2 divisors, whose sum is σ = 66042893706264. Its totient is φ = 66042893706262.

The previous prime is 66042893706191. The next prime is 66042893706277. The reversal of 66042893706263 is 36260739824066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66042893706263 - 2²⁴ = 66042876929047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66042893706196 and 66042893706205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66042893706463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33021446853131 + 33021446853132.

It is an arithmetic number, because the mean of its divisors is an integer number (33021446853132).

Almost surely, 2^{66042893706263} is an apocalyptic number.

66042893706263 is a deficient number, since it is larger than the sum of its proper divisors (1).

66042893706263 is an equidigital number, since it uses as much as digits as its factorization.

66042893706263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94058496, while the sum is 62.

The spelling of 66042893706263 in words is "sixty-six trillion, forty-two billion, eight hundred ninety-three million, seven hundred six thousand, two hundred sixty-three".