55081718496000 has 4320 divisors, whose sum is σ = 256040243851392. Its totient is φ = 11682761932800.

The previous prime is 55081718495977. The next prime is 55081718496029. The reversal of 55081718496000 is 69481718055.

It is a happy number.

55081718496000 is a `hidden beast` number, since 5 + 5 + 0 + 8 + 17 + 18 + 4 + 9 + 600 + 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 (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 209436191869 + ... + 209436192131.

Almost surely, 2^{55081718496000} is an apocalyptic number.

55081718496000 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 55081718496000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128020121925696).

55081718496000 is an abundant number, since it is smaller than the sum of its proper divisors (200958525355392).

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

55081718496000 is a wasteful number, since it uses less digits than its factorization.

55081718496000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 55081718496000 in words is "fifty-five trillion, eighty-one billion, seven hundred eighteen million, four hundred ninety-six thousand".