5991531320 has 32 divisors (see below), whose sum is σ = 13494556800. Its totient is φ = 2394192768.

The previous prime is 5991531277. The next prime is 5991531331. The reversal of 5991531320 is 231351995.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35240 + ... + 114999.

It is an arithmetic number, because the mean of its divisors is an integer number (421704900).

Almost surely, 2^5991531320 is an apocalyptic number.

It is an amenable number.

5991531320 is an abundant number, since it is smaller than the sum of its proper divisors (7503025480).

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

5991531320 is a wasteful number, since it uses less digits than its factorization.

5991531320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151247 (or 151243 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 5991531320 is about 77404.9825269666. The cubic root of 5991531320 is about 1816.2652673558.

The spelling of 5991531320 in words is "five billion, nine hundred ninety-one million, five hundred thirty-one thousand, three hundred twenty".