666066084846 has 16 divisors (see below), whose sum is σ = 1332394409808. Its totient is φ = 221978321600.

The previous prime is 666066084809. The next prime is 666066084877. The reversal of 666066084846 is 648480660666.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 666066084846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10893645 + ... + 10954616.

It is an arithmetic number, because the mean of its divisors is an integer number (83274650613).

Almost surely, 2^666066084846 is an apocalyptic number.

666066084846 is an abundant number, since it is smaller than the sum of its proper divisors (666328324962).

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

666066084846 is a wasteful number, since it uses less digits than its factorization.

666066084846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21853347.

The product of its (nonzero) digits is 47775744, while the sum is 60.

The spelling of 666066084846 in words is "six hundred sixty-six billion, sixty-six million, eighty-four thousand, eight hundred forty-six".