12656475000 has 288 divisors, whose sum is σ = 46151108640. Its totient is φ = 3114720000.

The previous prime is 12656474969. The next prime is 12656475011. The reversal of 12656475000 is 57465621.

It is a happy number.

12656475000 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 647 + 5 + 0 + 0 + 0 = 666.

It is a Cunningham number, because it is equal to 112501²-1.

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

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 2922837 + ... + 2927163.

It is an arithmetic number, because the mean of its divisors is an integer number (160246905).

Almost surely, 2^12656475000 is an apocalyptic number.

12656475000 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 12656475000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23075554320).

12656475000 is an abundant number, since it is smaller than the sum of its proper divisors (33494633640).

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

12656475000 is a wasteful number, since it uses less digits than its factorization.

12656475000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377 (or 4350 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 12656475000 in words is "twelve billion, six hundred fifty-six million, four hundred seventy-five thousand".