12605425920 has 216 divisors, whose sum is σ = 44629480896. Its totient is φ = 3283144704.

The previous prime is 12605425907. The next prime is 12605425961. The reversal of 12605425920 is 2952450621.

12605425920 is a `hidden beast` number, since 1 + 2 + 60 + 5 + 4 + 2 + 592 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482637 + ... + 508083.

Almost surely, 2^12605425920 is an apocalyptic number.

12605425920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12605425920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22314740448).

12605425920 is an abundant number, since it is smaller than the sum of its proper divisors (32024054976).

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

12605425920 is a wasteful number, since it uses less digits than its factorization.

12605425920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25517 (or 25500 counting only the distinct ones).

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

The spelling of 12605425920 in words is "twelve billion, six hundred five million, four hundred twenty-five thousand, nine hundred twenty".