12551372064 has 384 divisors, whose sum is σ = 46884096000. Its totient is φ = 3171363840.

The previous prime is 12551372059. The next prime is 12551372069. The reversal of 12551372064 is 46027315521.

12551372064 is a `hidden beast` number, since 12 + 5 + 513 + 72 + 0 + 64 = 666.

12551372064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12551372059) and next prime (12551372069).

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

It is not an unprimeable number, because it can be changed into a prime (12551372069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2458987 + ... + 2464085.

It is an arithmetic number, because the mean of its divisors is an integer number (122094000).

Almost surely, 2^12551372064 is an apocalyptic number.

12551372064 is a gapful number since it is divisible by the number (14) 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 12551372064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23442048000).

12551372064 is an abundant number, since it is smaller than the sum of its proper divisors (34332723936).

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

12551372064 is a wasteful number, since it uses less digits than its factorization.

12551372064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173 (or 5159 counting only the distinct ones).

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

Adding to 12551372064 its reverse (46027315521), we get a palindrome (58578687585).

The spelling of 12551372064 in words is "twelve billion, five hundred fifty-one million, three hundred seventy-two thousand, sixty-four".