12356637696 has 352 divisors, whose sum is σ = 40717286400. Its totient is φ = 3676078080.

The previous prime is 12356637607. The next prime is 12356637703. The reversal of 12356637696 is 69673665321.

12356637696 is a `hidden beast` number, since 1 + 2 + 3 + 566 + 3 + 76 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11141590 + ... + 11142698.

Almost surely, 2^12356637696 is an apocalyptic number.

12356637696 is a gapful number since it is divisible by the number (16) 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 12356637696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20358643200).

12356637696 is an abundant number, since it is smaller than the sum of its proper divisors (28360648704).

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

12356637696 is a wasteful number, since it uses less digits than its factorization.

12356637696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1158 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 54.

The spelling of 12356637696 in words is "twelve billion, three hundred fifty-six million, six hundred thirty-seven thousand, six hundred ninety-six".