5599144656 has 480 divisors, whose sum is σ = 20318699520. Its totient is φ = 1443163392.

The previous prime is 5599144643. The next prime is 5599144657. The reversal of 5599144656 is 6564419955.

5599144656 is a `hidden beast` number, since 5 + 599 + 1 + 4 + 46 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5599144657) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25108161 + ... + 25108383.

It is an arithmetic number, because the mean of its divisors is an integer number (42330624).

Almost surely, 2^5599144656 is an apocalyptic number.

5599144656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5599144656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10159349760).

5599144656 is an abundant number, since it is smaller than the sum of its proper divisors (14719554864).

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

5599144656 is a wasteful number, since it uses less digits than its factorization.

5599144656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 277 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The square root of 5599144656 is about 74827.4325097420. The cubic root of 5599144656 is about 1775.7175865768.

The spelling of 5599144656 in words is "five billion, five hundred ninety-nine million, one hundred forty-four thousand, six hundred fifty-six".