66067030375439 has 2 divisors, whose sum is σ = 66067030375440. Its totient is φ = 66067030375438.

The previous prime is 66067030375421. The next prime is 66067030375441. The reversal of 66067030375439 is 93457303076066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66067030375439 - 2⁸ = 66067030375183 is a prime.

Together with 66067030375441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66067060375439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33033515187719 + 33033515187720.

It is an arithmetic number, because the mean of its divisors is an integer number (33033515187720).

Almost surely, 2^{66067030375439} is an apocalyptic number.

66067030375439 is a deficient number, since it is larger than the sum of its proper divisors (1).

66067030375439 is an equidigital number, since it uses as much as digits as its factorization.

66067030375439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51438240, while the sum is 59.

The spelling of 66067030375439 in words is "sixty-six trillion, sixty-seven billion, thirty million, three hundred seventy-five thousand, four hundred thirty-nine".