12659554936 has 96 divisors (see below), whose sum is σ = 28863267840. Its totient is φ = 5180505792.

The previous prime is 12659554877. The next prime is 12659554939. The reversal of 12659554936 is 63945595621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12659554939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7996401 + ... + 7997983.

It is an arithmetic number, because the mean of its divisors is an integer number (300659040).

Almost surely, 2^12659554936 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 12659554936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14431633920).

12659554936 is an abundant number, since it is smaller than the sum of its proper divisors (16203712904).

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

12659554936 is a wasteful number, since it uses less digits than its factorization.

12659554936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2502 counting only the distinct ones).

The product of its digits is 8748000, while the sum is 55.

The spelling of 12659554936 in words is "twelve billion, six hundred fifty-nine million, five hundred fifty-four thousand, nine hundred thirty-six".