5999861589120 has 960 divisors, whose sum is σ = 24258071143800. Its totient is φ = 1366399254528.

The previous prime is 5999861589083. The next prime is 5999861589133. The reversal of 5999861589120 is 219851689995.

5999861589120 is a `hidden beast` number, since 599 + 9 + 8 + 6 + 1 + 5 + 8 + 9 + 1 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5817628224576 + 182233364544 = 2411976^2 + 426888^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4881904666 + ... + 4881905894.

Almost surely, 2^{5999861589120} 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 5999861589120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12129035571900).

5999861589120 is an abundant number, since it is smaller than the sum of its proper divisors (18258209554680).

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

5999861589120 is a wasteful number, since it uses less digits than its factorization.

5999861589120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1599 counting only the distinct ones).

The product of its (nonzero) digits is 125971200, while the sum is 72.

The spelling of 5999861589120 in words is "five trillion, nine hundred ninety-nine billion, eight hundred sixty-one million, five hundred eighty-nine thousand, one hundred twenty".