12018999966 has 16 divisors (see below), whose sum is σ = 25452000144. Its totient is φ = 3770666624.

The previous prime is 12018999943. The next prime is 12018999977. The reversal of 12018999966 is 66999981021.

12018999966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 58916565 + ... + 58916768.

It is an arithmetic number, because the mean of its divisors is an integer number (1590750009).

Almost surely, 2^12018999966 is an apocalyptic number.

12018999966 is an abundant number, since it is smaller than the sum of its proper divisors (13433000178).

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

12018999966 is a wasteful number, since it uses less digits than its factorization.

12018999966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117833355.

The product of its (nonzero) digits is 3779136, while the sum is 60.

The spelling of 12018999966 in words is "twelve billion, eighteen million, nine hundred ninety-nine thousand, nine hundred sixty-six".