1066646327 has 2 divisors, whose sum is σ = 1066646328. Its totient is φ = 1066646326.

The previous prime is 1066646279. The next prime is 1066646353. The reversal of 1066646327 is 7236466601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1066646327 - 2²⁸ = 798210871 is a prime.

It is a super-2 number, since 2×1066646327² = 2275468773805181858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066646227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533323163 + 533323164.

It is an arithmetic number, because the mean of its divisors is an integer number (533323164).

Almost surely, 2^1066646327 is an apocalyptic number.

1066646327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066646327 is an equidigital number, since it uses as much as digits as its factorization.

1066646327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 1066646327 is about 32659.5518493442. The cubic root of 1066646327 is about 1021.7394154508.

The spelling of 1066646327 in words is "one billion, sixty-six million, six hundred forty-six thousand, three hundred twenty-seven".