666448049027 has 2 divisors, whose sum is σ = 666448049028. Its totient is φ = 666448049026.

The previous prime is 666448049011. The next prime is 666448049039. The reversal of 666448049027 is 720940844666.

666448049027 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 is a cyclic number.

It is not a de Polignac number, because 666448049027 - 2⁴ = 666448049011 is a prime.

It is not a weakly prime, because it can be changed into another prime (666448046027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333224024513 + 333224024514.

It is an arithmetic number, because the mean of its divisors is an integer number (333224024514).

Almost surely, 2^666448049027 is an apocalyptic number.

666448049027 is a deficient number, since it is larger than the sum of its proper divisors (1).

666448049027 is an equidigital number, since it uses as much as digits as its factorization.

666448049027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 666448049027 in words is "six hundred sixty-six billion, four hundred forty-eight million, forty-nine thousand, twenty-seven".