66042893706463 has 2 divisors, whose sum is σ = 66042893706464. Its totient is φ = 66042893706462.

The previous prime is 66042893706457. The next prime is 66042893706467. The reversal of 66042893706463 is 36460739824066.

It is a happy number.

66042893706463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66042893706463 - 2⁵ = 66042893706431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66042893706395 and 66042893706404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66042893706467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33021446853231 + 33021446853232.

It is an arithmetic number, because the mean of its divisors is an integer number (33021446853232).

Almost surely, 2^{66042893706463} is an apocalyptic number.

66042893706463 is a deficient number, since it is larger than the sum of its proper divisors (1).

66042893706463 is an equidigital number, since it uses as much as digits as its factorization.

66042893706463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188116992, while the sum is 64.

The spelling of 66042893706463 in words is "sixty-six trillion, forty-two billion, eight hundred ninety-three million, seven hundred six thousand, four hundred sixty-three".