666448006086 has 24 divisors (see below), whose sum is σ = 1444045554120. Its totient is φ = 222137816256.

The previous prime is 666448006057. The next prime is 666448006127. The reversal of 666448006086 is 680600844666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 599491 + ... + 1300878.

It is an arithmetic number, because the mean of its divisors is an integer number (60168564755).

Almost surely, 2^666448006086 is an apocalyptic number.

666448006086 is an abundant number, since it is smaller than the sum of its proper divisors (777597548034).

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

666448006086 is a wasteful number, since it uses less digits than its factorization.

666448006086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919860 (or 1919857 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 666448006086 in words is "six hundred sixty-six billion, four hundred forty-eight million, six thousand, eighty-six".