666063441211 has 16 divisors (see below), whose sum is σ = 765337595328. Its totient is φ = 567827366400.

The previous prime is 666063441193. The next prime is 666063441283. The reversal of 666063441211 is 112144360666.

It is a happy number.

It is not a de Polignac number, because 666063441211 - 2⁷ = 666063441083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666063441011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751191 + ... + 1377103.

It is an arithmetic number, because the mean of its divisors is an integer number (47833599708).

Almost surely, 2^666063441211 is an apocalyptic number.

666063441211 is a deficient number, since it is larger than the sum of its proper divisors (99274154117).

666063441211 is a wasteful number, since it uses less digits than its factorization.

666063441211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626742.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 666063441211 in words is "six hundred sixty-six billion, sixty-three million, four hundred forty-one thousand, two hundred eleven".