5518456320 has 320 divisors, whose sum is σ = 19622744064. Its totient is φ = 1313832960.

The previous prime is 5518456277. The next prime is 5518456331. The reversal of 5518456320 is 236548155.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3094149 + ... + 3095931.

Almost surely, 2^5518456320 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 5518456320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9811372032).

5518456320 is an abundant number, since it is smaller than the sum of its proper divisors (14104287744).

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

5518456320 is a wasteful number, since it uses less digits than its factorization.

5518456320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 5518456320 is about 74286.3131404433. The cubic root of 5518456320 is about 1767.1464249831.

The spelling of 5518456320 in words is "five billion, five hundred eighteen million, four hundred fifty-six thousand, three hundred twenty".