66660000001327 has 2 divisors, whose sum is σ = 66660000001328. Its totient is φ = 66660000001326.

The previous prime is 66660000001307. The next prime is 66660000001363. The reversal of 66660000001327 is 72310000006666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66660000001327 - 2¹⁹ = 66659999477039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66660000001307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33330000000663 + 33330000000664.

It is an arithmetic number, because the mean of its divisors is an integer number (33330000000664).

Almost surely, 2^{66660000001327} is an apocalyptic number.

66660000001327 is a deficient number, since it is larger than the sum of its proper divisors (1).

66660000001327 is an equidigital number, since it uses as much as digits as its factorization.

66660000001327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 66660000001327 in words is "sixty-six trillion, six hundred sixty billion, one thousand, three hundred twenty-seven".