5591321148 has 144 divisors (see below), whose sum is σ = 15962428160. Its totient is φ = 1491830784.

The previous prime is 5591321117. The next prime is 5591321161. The reversal of 5591321148 is 8411231955.

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, 3373536 + ... + 3375192.

Almost surely, 2^5591321148 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 5591321148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7981214080).

5591321148 is an abundant number, since it is smaller than the sum of its proper divisors (10371107012).

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

5591321148 is a wasteful number, since it uses less digits than its factorization.

5591321148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844 (or 1825 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 5591321148 is about 74775.1372315692. The cubic root of 5591321148 is about 1774.8901497051.

The spelling of 5591321148 in words is "five billion, five hundred ninety-one million, three hundred twenty-one thousand, one hundred forty-eight".