66666594006 has 48 divisors (see below), whose sum is σ = 150015153600. Its totient is φ = 21378639744.

The previous prime is 66666593999. The next prime is 66666594011. The reversal of 66666594006 is 60049566666.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 503086 + ... + 621633.

It is an arithmetic number, because the mean of its divisors is an integer number (3125315700).

Almost surely, 2^66666594006 is an apocalyptic number.

66666594006 is an abundant number, since it is smaller than the sum of its proper divisors (83348559594).

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

66666594006 is a wasteful number, since it uses less digits than its factorization.

66666594006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124853 (or 1124850 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 66666594006 in words is "sixty-six billion, six hundred sixty-six million, five hundred ninety-four thousand, six".