12625025166 has 96 divisors (see below), whose sum is σ = 30096323712. Its totient is φ = 3800908800.

The previous prime is 12625025131. The next prime is 12625025167. The reversal of 12625025166 is 66152052621.

12625025166 is a `hidden beast` number, since 1 + 2 + 625 + 0 + 25 + 1 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12625025166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12625025167) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5368891 + ... + 5371241.

It is an arithmetic number, because the mean of its divisors is an integer number (313503372).

Almost surely, 2^12625025166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12625025166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15048161856).

12625025166 is an abundant number, since it is smaller than the sum of its proper divisors (17471298546).

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

12625025166 is a wasteful number, since it uses less digits than its factorization.

12625025166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2855 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 12625025166 its reverse (66152052621), we get a palindrome (78777077787).

The spelling of 12625025166 in words is "twelve billion, six hundred twenty-five million, twenty-five thousand, one hundred sixty-six".