5991555372 has 24 divisors (see below), whose sum is σ = 15251232192. Its totient is φ = 1815622800.

The previous prime is 5991555337. The next prime is 5991555389. The reversal of 5991555372 is 2735551995.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22695154 + ... + 22695417.

It is an arithmetic number, because the mean of its divisors is an integer number (635468008).

Almost surely, 2^5991555372 is an apocalyptic number.

It is an amenable number.

5991555372 is an abundant number, since it is smaller than the sum of its proper divisors (9259676820).

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

5991555372 is a wasteful number, since it uses less digits than its factorization.

5991555372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45390589 (or 45390587 counting only the distinct ones).

The product of its digits is 2126250, while the sum is 51.

The square root of 5991555372 is about 77405.1378914862. The cubic root of 5991555372 is about 1816.2676977169.

The spelling of 5991555372 in words is "five billion, nine hundred ninety-one million, five hundred fifty-five thousand, three hundred seventy-two".