5991611883840 has 336 divisors, whose sum is σ = 23089792377600. Its totient is φ = 1413254615040.

The previous prime is 5991611883823. The next prime is 5991611883871. The reversal of 5991611883840 is 483881161995.

5991611883840 is a `hidden beast` number, since 5 + 9 + 9 + 1 + 611 + 8 + 8 + 3 + 8 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1383640 + ... + 3727959.

Almost surely, 2^{5991611883840} is an apocalyptic number.

It is an amenable number.

5991611883840 is an abundant number, since it is smaller than the sum of its proper divisors (17098180493760).

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

5991611883840 is a wasteful number, since it uses less digits than its factorization.

5991611883840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111670 (or 5111657 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 5991611883840 in words is "five trillion, nine hundred ninety-one billion, six hundred eleven million, eight hundred eighty-three thousand, eight hundred forty".