12558502118400 has 1056 divisors, whose sum is σ = 49534229606400. Its totient is φ = 2803505725440.

The previous prime is 12558502118381. The next prime is 12558502118411. The reversal of 12558502118400 is 481120585521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1132717657 + ... + 1132728743.

It is an arithmetic number, because the mean of its divisors is an integer number (46907414400).

Almost surely, 2^{12558502118400} is an apocalyptic number.

12558502118400 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 12558502118400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24767114803200).

12558502118400 is an abundant number, since it is smaller than the sum of its proper divisors (36975727488000).

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

12558502118400 is a wasteful number, since it uses less digits than its factorization.

12558502118400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11184 (or 11147 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 42.

The spelling of 12558502118400 in words is "twelve trillion, five hundred fifty-eight billion, five hundred two million, one hundred eighteen thousand, four hundred".