55556671730000 has 200 divisors, whose sum is σ = 153750236325312. Its totient is φ = 19044716544000.

The previous prime is 55556671729967. The next prime is 55556671730003. The reversal of 55556671730000 is 3717665555.

It is a happy number.

55556671730000 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 (200).

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55556671730003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 424624592 + ... + 424755408.

Almost surely, 2^{55556671730000} is an apocalyptic number.

55556671730000 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 55556671730000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76875118162656).

55556671730000 is an abundant number, since it is smaller than the sum of its proper divisors (98193564595312).

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

55556671730000 is a wasteful number, since it uses less digits than its factorization.

55556671730000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136919 (or 136898 counting only the distinct ones).

The product of its (nonzero) digits is 3307500, while the sum is 50.

The spelling of 55556671730000 in words is "fifty-five trillion, five hundred fifty-six billion, six hundred seventy-one million, seven hundred thirty thousand".