55458043200000 has 4320 divisors, whose sum is σ = 250706675995776. Its totient is φ = 12192768000000.

The previous prime is 55458043199987. The next prime is 55458043200017. The reversal of 55458043200000 is 234085455.

55458043200000 is a `hidden beast` number, since 5 + 54 + 580 + 4 + 3 + 20 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (4320).

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

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 431 ways as a sum of consecutive naturals, for example, 781099199965 + ... + 781099200035.

Almost surely, 2^{55458043200000} is an apocalyptic number.

55458043200000 is a gapful number since it is divisible by the number (50) 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 55458043200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125353337997888).

55458043200000 is an abundant number, since it is smaller than the sum of its proper divisors (195248632795776).

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

55458043200000 is an frugal number, since it uses more digits than its factorization.

55458043200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 55458043200000 its reverse (234085455), we get a palindrome (55458277285455).

The spelling of 55458043200000 in words is "fifty-five trillion, four hundred fifty-eight billion, forty-three million, two hundred thousand".