12158487066 has 32 divisors (see below), whose sum is σ = 26531914176. Its totient is φ = 3683792000.

The previous prime is 12158487053. The next prime is 12158487071. The reversal of 12158487066 is 66078485121.

12158487066 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562336 + ... + 583556.

It is an arithmetic number, because the mean of its divisors is an integer number (829122318).

Almost surely, 2^12158487066 is an apocalyptic number.

12158487066 is an abundant number, since it is smaller than the sum of its proper divisors (14373427110).

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

12158487066 is a wasteful number, since it uses less digits than its factorization.

12158487066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29918.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 12158487066 in words is "twelve billion, one hundred fifty-eight million, four hundred eighty-seven thousand, sixty-six".