12551338800 has 1680 divisors, whose sum is σ = 62114857728. Its totient is φ = 2351462400.

The previous prime is 12551338771. The next prime is 12551338817. The reversal of 12551338800 is 883315521.

12551338800 = 271³ + 272³ + ... + 485³.

12551338800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a super-2 number, since 2×12551338800² (a number of 21 digits) contains 22 as substring.

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 (17) of ones.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 291891579 + ... + 291891621.

Almost surely, 2^12551338800 is an apocalyptic number.

12551338800 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 12551338800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31057428864).

12551338800 is an abundant number, since it is smaller than the sum of its proper divisors (49563518928).

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

12551338800 is a wasteful number, since it uses less digits than its factorization.

12551338800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 12551338800 in words is "twelve billion, five hundred fifty-one million, three hundred thirty-eight thousand, eight hundred".