64440060606 has 24 divisors (see below), whose sum is σ = 139660747200. Its totient is φ = 21473771616.

The previous prime is 64440060563. The next prime is 64440060631. The reversal of 64440060606 is 60606004446.

It is a happy number.

64440060606 is a `hidden beast` number, since 6 + 4 + 4 + 40 + 0 + 6 + 0 + 606 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456910 + ... + 581073.

It is an arithmetic number, because the mean of its divisors is an integer number (5819197800).

Almost surely, 2^64440060606 is an apocalyptic number.

64440060606 is an abundant number, since it is smaller than the sum of its proper divisors (75220686594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64440060606 is a wasteful number, since it uses less digits than its factorization.

64440060606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041440 (or 1041437 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 64440060606 in words is "sixty-four billion, four hundred forty million, sixty thousand, six hundred six".