12000666771 has 12 divisors (see below), whose sum is σ = 17345064048. Its totient is φ = 7995474864.

The previous prime is 12000666767. The next prime is 12000666827. The reversal of 12000666771 is 17766600021.

12000666771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12000666771 - 2² = 12000666767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12000666761) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 398815 + ... + 427848.

It is an arithmetic number, because the mean of its divisors is an integer number (1445422004).

Almost surely, 2^12000666771 is an apocalyptic number.

12000666771 is a deficient number, since it is larger than the sum of its proper divisors (5344397277).

12000666771 is a wasteful number, since it uses less digits than its factorization.

12000666771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828282 (or 828279 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 12000666771 in words is "twelve billion, six hundred sixty-six thousand, seven hundred seventy-one".