12806450166 has 32 divisors (see below), whose sum is σ = 27564137568. Its totient is φ = 3951843840.

The previous prime is 12806450159. The next prime is 12806450273. The reversal of 12806450166 is 66105460821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022905 + ... + 1035348.

It is an arithmetic number, because the mean of its divisors is an integer number (861379299).

Almost surely, 2^12806450166 is an apocalyptic number.

12806450166 is an abundant number, since it is smaller than the sum of its proper divisors (14757687402).

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

12806450166 is a wasteful number, since it uses less digits than its factorization.

12806450166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058336.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 12806450166 in words is "twelve billion, eight hundred six million, four hundred fifty thousand, one hundred sixty-six".