66001027 has 2 divisors, whose sum is σ = 66001028. Its totient is φ = 66001026.

The previous prime is 66000997. The next prime is 66001037. The reversal of 66001027 is 72010066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66001027 - 2⁷ = 66000899 is a prime.

It is a super-2 number, since 2×66001027² = 8712271130109458, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66000989 and 66001007.

It is not a weakly prime, because it can be changed into another prime (66001037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33000513 + 33000514.

It is an arithmetic number, because the mean of its divisors is an integer number (33000514).

Almost surely, 2^66001027 is an apocalyptic number.

66001027 is a deficient number, since it is larger than the sum of its proper divisors (1).

66001027 is an equidigital number, since it uses as much as digits as its factorization.

66001027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 66001027 is about 8124.1016118707. The cubic root of 66001027 is about 404.1260981895.

The spelling of 66001027 in words is "sixty-six million, one thousand, twenty-seven".