12554552534400 has 576 divisors, whose sum is σ = 47094690769200. Its totient is φ = 3266187264000.

The previous prime is 12554552534353. The next prime is 12554552534411. The reversal of 12554552534400 is 443525545521.

12554552534400 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 4 + 552 + 53 + 4 + 40 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 145195180 + ... + 145281620.

Almost surely, 2^{12554552534400} is an apocalyptic number.

12554552534400 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 12554552534400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23547345384600).

12554552534400 is an abundant number, since it is smaller than the sum of its proper divisors (34540138234800).

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

12554552534400 is an equidigital number, since it uses as much as digits as its factorization.

12554552534400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86556 (or 86492 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 45.

The spelling of 12554552534400 in words is "twelve trillion, five hundred fifty-four billion, five hundred fifty-two million, five hundred thirty-four thousand, four hundred".