666034241 has 2 divisors, whose sum is σ = 666034242. Its totient is φ = 666034240.

The previous prime is 666034223. The next prime is 666034289. The reversal of 666034241 is 142430666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 665433616 + 600625 = 25796^2 + 775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-666034241 is a prime.

It is a super-2 number, since 2×666034241² = 887203220368892162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 666034198 and 666034207.

It is not a weakly prime, because it can be changed into another prime (666034541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333017120 + 333017121.

It is an arithmetic number, because the mean of its divisors is an integer number (333017121).

Almost surely, 2^666034241 is an apocalyptic number.

It is an amenable number.

666034241 is a deficient number, since it is larger than the sum of its proper divisors (1).

666034241 is an equidigital number, since it uses as much as digits as its factorization.

666034241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 666034241 is about 25807.6391985009. The cubic root of 666034241 is about 873.3041399865.

The spelling of 666034241 in words is "six hundred sixty-six million, thirty-four thousand, two hundred forty-one".