66700884863 has 2 divisors, whose sum is σ = 66700884864. Its totient is φ = 66700884862.

The previous prime is 66700884799. The next prime is 66700884881. The reversal of 66700884863 is 36848800766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66700884863 - 2⁶ = 66700884799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66700884799 and 66700884808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66700884883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33350442431 + 33350442432.

It is an arithmetic number, because the mean of its divisors is an integer number (33350442432).

Almost surely, 2^66700884863 is an apocalyptic number.

66700884863 is a deficient number, since it is larger than the sum of its proper divisors (1).

66700884863 is an equidigital number, since it uses as much as digits as its factorization.

66700884863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 66700884863 in words is "sixty-six billion, seven hundred million, eight hundred eighty-four thousand, eight hundred sixty-three".