66362845841 has 2 divisors, whose sum is σ = 66362845842. Its totient is φ = 66362845840.

The previous prime is 66362845819. The next prime is 66362845849. The reversal of 66362845841 is 14854826366.

66362845841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66252700816 + 110145025 = 257396^2 + 10495^2 .

It is a cyclic number.

It is not a de Polignac number, because 66362845841 - 2³⁴ = 49182976657 is a prime.

It is not a weakly prime, because it can be changed into another prime (66362845849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33181422920 + 33181422921.

It is an arithmetic number, because the mean of its divisors is an integer number (33181422921).

Almost surely, 2^66362845841 is an apocalyptic number.

It is an amenable number.

66362845841 is a deficient number, since it is larger than the sum of its proper divisors (1).

66362845841 is an equidigital number, since it uses as much as digits as its factorization.

66362845841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6635520, while the sum is 53.

The spelling of 66362845841 in words is "sixty-six billion, three hundred sixty-two million, eight hundred forty-five thousand, eight hundred forty-one".