66002277598541 has 2 divisors, whose sum is σ = 66002277598542. Its totient is φ = 66002277598540.

The previous prime is 66002277598531. The next prime is 66002277598667. The reversal of 66002277598541 is 14589577220066.

66002277598541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34424857252900 + 31577420345641 = 5867270^2 + 5619379^2 .

It is a cyclic number.

It is not a de Polignac number, because 66002277598541 - 2²² = 66002273404237 is a prime.

It is a super-2 number, since 2×66002277598541² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66002277598531) 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, 33001138799270 + 33001138799271.

It is an arithmetic number, because the mean of its divisors is an integer number (33001138799271).

Almost surely, 2^{66002277598541} is an apocalyptic number.

It is an amenable number.

66002277598541 is a deficient number, since it is larger than the sum of its proper divisors (1).

66002277598541 is an equidigital number, since it uses as much as digits as its factorization.

66002277598541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50803200, while the sum is 62.

The spelling of 66002277598541 in words is "sixty-six trillion, two billion, two hundred seventy-seven million, five hundred ninety-eight thousand, five hundred forty-one".