66660000001027 has 2 divisors, whose sum is σ = 66660000001028. Its totient is φ = 66660000001026.

The previous prime is 66660000001019. The next prime is 66660000001069. The reversal of 66660000001027 is 72010000006666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66660000001027 - 2³ = 66660000001019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66660000000983 and 66660000001001.

It is not a weakly prime, because it can be changed into another prime (66660000001327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33330000000513 + 33330000000514.

It is an arithmetic number, because the mean of its divisors is an integer number (33330000000514).

Almost surely, 2^{66660000001027} is an apocalyptic number.

66660000001027 is a deficient number, since it is larger than the sum of its proper divisors (1).

66660000001027 is an equidigital number, since it uses as much as digits as its factorization.

66660000001027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 66660000001027 in words is "sixty-six trillion, six hundred sixty billion, one thousand, twenty-seven".