66414675563 has 2 divisors, whose sum is σ = 66414675564. Its totient is φ = 66414675562.

The previous prime is 66414675533. The next prime is 66414675581. The reversal of 66414675563 is 36557641466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66414675563 - 2⁶ = 66414675499 is a prime.

It is not a weakly prime, because it can be changed into another prime (66414675533) 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, 33207337781 + 33207337782.

It is an arithmetic number, because the mean of its divisors is an integer number (33207337782).

Almost surely, 2^66414675563 is an apocalyptic number.

66414675563 is a deficient number, since it is larger than the sum of its proper divisors (1).

66414675563 is an equidigital number, since it uses as much as digits as its factorization.

66414675563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 53.

The spelling of 66414675563 in words is "sixty-six billion, four hundred fourteen million, six hundred seventy-five thousand, five hundred sixty-three".