66665001006 has 12 divisors (see below), whose sum is σ = 144440835552. Its totient is φ = 22221666996.

The previous prime is 66665000951. The next prime is 66665001017. The reversal of 66665001006 is 60010056666.

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 5 ways as a sum of consecutive naturals, for example, 1851805566 + ... + 1851805601.

It is an arithmetic number, because the mean of its divisors is an integer number (12036736296).

Almost surely, 2^66665001006 is an apocalyptic number.

66665001006 is an abundant number, since it is smaller than the sum of its proper divisors (77775834546).

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

66665001006 is a wasteful number, since it uses less digits than its factorization.

66665001006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703611175 (or 3703611172 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 66665001006 in words is "sixty-six billion, six hundred sixty-five million, one thousand, six".