666050753 has 2 divisors, whose sum is σ = 666050754. Its totient is φ = 666050752.

The previous prime is 666050741. The next prime is 666050773. The reversal of 666050753 is 357050666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 630612544 + 35438209 = 25112^2 + 5953^2 .

It is a cyclic number.

It is not a de Polignac number, because 666050753 - 2⁶ = 666050689 is a prime.

It is a super-3 number, since 3×666050753³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (666050773) 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, 333025376 + 333025377.

It is an arithmetic number, because the mean of its divisors is an integer number (333025377).

Almost surely, 2^666050753 is an apocalyptic number.

It is an amenable number.

666050753 is a deficient number, since it is larger than the sum of its proper divisors (1).

666050753 is an equidigital number, since it uses as much as digits as its factorization.

666050753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 666050753 is about 25807.9591017965. The cubic root of 666050753 is about 873.3113567721.

The spelling of 666050753 in words is "six hundred sixty-six million, fifty thousand, seven hundred fifty-three".