666066060563 has 2 divisors, whose sum is σ = 666066060564. Its totient is φ = 666066060562.

The previous prime is 666066060557. The next prime is 666066060599. The reversal of 666066060563 is 365060660666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 666066060563 - 2³⁴ = 648886191379 is a prime.

It is not a weakly prime, because it can be changed into another prime (666066060553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333033030281 + 333033030282.

It is an arithmetic number, because the mean of its divisors is an integer number (333033030282).

Almost surely, 2^666066060563 is an apocalyptic number.

666066060563 is a deficient number, since it is larger than the sum of its proper divisors (1).

666066060563 is an equidigital number, since it uses as much as digits as its factorization.

666066060563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 50.

The spelling of 666066060563 in words is "six hundred sixty-six billion, sixty-six million, sixty thousand, five hundred sixty-three".