180646212666 has 16 divisors (see below), whose sum is σ = 362804112000. Its totient is φ = 59963456448.

The previous prime is 180646212641. The next prime is 180646212679. The reversal of 180646212666 is 666212646081.

180646212666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 62985391 + ... + 62988258.

It is an arithmetic number, because the mean of its divisors is an integer number (22675257000).

Almost surely, 2^180646212666 is an apocalyptic number.

180646212666 is an abundant number, since it is smaller than the sum of its proper divisors (182157899334).

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

180646212666 is a wasteful number, since it uses less digits than its factorization.

180646212666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125973893.

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 180646212666 in words is "one hundred eighty billion, six hundred forty-six million, two hundred twelve thousand, six hundred sixty-six".