12516540166 has 16 divisors (see below), whose sum is σ = 20221571664. Its totient is φ = 5776137504.

The previous prime is 12516540161. The next prime is 12516540167. The reversal of 12516540166 is 66104561521.

12516540166 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 not an unprimeable number, because it can be changed into a prime (12516540161) 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 7 ways as a sum of consecutive naturals, for example, 218880 + ... + 270076.

It is an arithmetic number, because the mean of its divisors is an integer number (1263848229).

Almost surely, 2^12516540166 is an apocalyptic number.

12516540166 is a deficient number, since it is larger than the sum of its proper divisors (7705031498).

12516540166 is a wasteful number, since it uses less digits than its factorization.

12516540166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60615.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 12516540166 in words is "twelve billion, five hundred sixteen million, five hundred forty thousand, one hundred sixty-six".