66614833814663 has 2 divisors, whose sum is σ = 66614833814664. Its totient is φ = 66614833814662.

The previous prime is 66614833814647. The next prime is 66614833814807. The reversal of 66614833814663 is 36641833841666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66614833814663 - 2⁴ = 66614833814647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66614833814663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66614833817663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33307416907331 + 33307416907332.

It is an arithmetic number, because the mean of its divisors is an integer number (33307416907332).

Almost surely, 2^{66614833814663} is an apocalyptic number.

66614833814663 is a deficient number, since it is larger than the sum of its proper divisors (1).

66614833814663 is an equidigital number, since it uses as much as digits as its factorization.

66614833814663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214990848, while the sum is 65.

The spelling of 66614833814663 in words is "sixty-six trillion, six hundred fourteen billion, eight hundred thirty-three million, eight hundred fourteen thousand, six hundred sixty-three".