5231656144 has 160 divisors (see below), whose sum is σ = 12657939840. Its totient is φ = 2061158400.

The previous prime is 5231656141. The next prime is 5231656159. The reversal of 5231656144 is 4416561325.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231656141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2453959 + ... + 2456089.

It is an arithmetic number, because the mean of its divisors is an integer number (79112124).

Almost surely, 2^5231656144 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 5231656144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6328969920).

5231656144 is an abundant number, since it is smaller than the sum of its proper divisors (7426283696).

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

5231656144 is a wasteful number, since it uses less digits than its factorization.

5231656144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229 (or 2223 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 5231656144 is about 72330.1883310143. The cubic root of 5231656144 is about 1735.9867147716.

The spelling of 5231656144 in words is "five billion, two hundred thirty-one million, six hundred fifty-six thousand, one hundred forty-four".