12506011596 has 72 divisors (see below), whose sum is σ = 34096490064. Its totient is φ = 3842087040.

The previous prime is 12506011579. The next prime is 12506011607. The reversal of 12506011596 is 69511060521.

12506011596 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 60 + 1 + 1 + 596 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12506011596.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289135 + ... + 329561.

It is an arithmetic number, because the mean of its divisors is an integer number (473562362).

Almost surely, 2^12506011596 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12506011596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17048245032).

12506011596 is an abundant number, since it is smaller than the sum of its proper divisors (21590478468).

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

12506011596 is a wasteful number, since it uses less digits than its factorization.

12506011596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41111 (or 41106 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 12506011596 in words is "twelve billion, five hundred six million, eleven thousand, five hundred ninety-six".