12625434166 has 16 divisors (see below), whose sum is σ = 20059280640. Its totient is φ = 5939271040.

The previous prime is 12625434161. The next prime is 12625434209. The reversal of 12625434166 is 66143452621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12625434161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33396 + ... + 162376.

It is an arithmetic number, because the mean of its divisors is an integer number (1253705040).

Almost surely, 2^12625434166 is an apocalyptic number.

12625434166 is a deficient number, since it is larger than the sum of its proper divisors (7433846474).

12625434166 is a wasteful number, since it uses less digits than its factorization.

12625434166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131879.

The product of its digits is 207360, while the sum is 40.

Adding to 12625434166 its reverse (66143452621), we get a palindrome (78768886787).

The spelling of 12625434166 in words is "twelve billion, six hundred twenty-five million, four hundred thirty-four thousand, one hundred sixty-six".