55194045995520 has 960 divisors, whose sum is σ = 209315667939840. Its totient is φ = 13778510118912.

The previous prime is 55194045995519. The next prime is 55194045995533. The reversal of 55194045995520 is 2559954049155.

55194045995520 is a `hidden beast` number, since 5 + 5 + 1 + 9 + 40 + 459 + 95 + 52 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

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, 1718514502 + ... + 1718546618.

It is an arithmetic number, because the mean of its divisors is an integer number (218037154104).

Almost surely, 2^{55194045995520} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55194045995520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104657833969920).

55194045995520 is an abundant number, since it is smaller than the sum of its proper divisors (154121621944320).

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

55194045995520 is a wasteful number, since it uses less digits than its factorization.

55194045995520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32242 (or 32197 counting only the distinct ones).

The product of its (nonzero) digits is 72900000, while the sum is 63.

The spelling of 55194045995520 in words is "fifty-five trillion, one hundred ninety-four billion, forty-five million, nine hundred ninety-five thousand, five hundred twenty".