666002424244 has 24 divisors (see below), whose sum is σ = 1205729721000. Its totient is φ = 321508897920.

The previous prime is 666002424169. The next prime is 666002424257. The reversal of 666002424244 is 442424200666.

It can be written as a sum of positive squares in 4 ways, for example, as 486004179600 + 179998244644 = 697140^2 + 424262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 666002424197 and 666002424206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5338014 + ... + 5461354.

It is an arithmetic number, because the mean of its divisors is an integer number (50238738375).

Almost surely, 2^666002424244 is an apocalyptic number.

It is an amenable number.

666002424244 is a deficient number, since it is larger than the sum of its proper divisors (539727296756).

666002424244 is a wasteful number, since it uses less digits than its factorization.

666002424244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169923 (or 169921 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 666002424244 in words is "six hundred sixty-six billion, two million, four hundred twenty-four thousand, two hundred forty-four".