66648295163 has 2 divisors, whose sum is σ = 66648295164. Its totient is φ = 66648295162.

The previous prime is 66648295157. The next prime is 66648295177. The reversal of 66648295163 is 36159284666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66648295163 - 2²⁰ = 66647246587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66648295099 and 66648295108.

It is not a weakly prime, because it can be changed into another prime (66648291163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33324147581 + 33324147582.

It is an arithmetic number, because the mean of its divisors is an integer number (33324147582).

Almost surely, 2^66648295163 is an apocalyptic number.

66648295163 is a deficient number, since it is larger than the sum of its proper divisors (1).

66648295163 is an equidigital number, since it uses as much as digits as its factorization.

66648295163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 56.

The spelling of 66648295163 in words is "sixty-six billion, six hundred forty-eight million, two hundred ninety-five thousand, one hundred sixty-three".