666533327 has 2 divisors, whose sum is σ = 666533328. Its totient is φ = 666533326.

The previous prime is 666533323. The next prime is 666533333. The reversal of 666533327 is 723335666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 666533327 - 2² = 666533323 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666533321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333266663 + 333266664.

It is an arithmetic number, because the mean of its divisors is an integer number (333266664).

Almost surely, 2^666533327 is an apocalyptic number.

666533327 is a deficient number, since it is larger than the sum of its proper divisors (1).

666533327 is an equidigital number, since it uses as much as digits as its factorization.

666533327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 41.

The square root of 666533327 is about 25817.3067340495. The cubic root of 666533327 is about 873.5222193889.

The spelling of 666533327 in words is "six hundred sixty-six million, five hundred thirty-three thousand, three hundred twenty-seven".