55994416128 has 1056 divisors, whose sum is σ = 212874375168. Its totient is φ = 14332723200.

The previous prime is 55994416109. The next prime is 55994416157. The reversal of 55994416128 is 82161449955.

55994416128 is a `hidden beast` number, since 5 + 599 + 4 + 41 + 6 + 1 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 917941218 + ... + 917941278.

Almost surely, 2^55994416128 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 55994416128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106437187584).

55994416128 is an abundant number, since it is smaller than the sum of its proper divisors (156879959040).

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

55994416128 is a wasteful number, since it uses less digits than its factorization.

55994416128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 121 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 55994416128 in words is "fifty-five billion, nine hundred ninety-four million, four hundred sixteen thousand, one hundred twenty-eight".