4518643560 has 64 divisors (see below), whose sum is σ = 13614194880. Its totient is φ = 1199792640.

The previous prime is 4518643559. The next prime is 4518643567. The reversal of 4518643560 is 653468154.

It is not an unprimeable number, because it can be changed into a prime (4518643567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52846 + ... + 108765.

It is an arithmetic number, because the mean of its divisors is an integer number (212721795).

Almost surely, 2^4518643560 is an apocalyptic number.

4518643560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4518643560 is an abundant number, since it is smaller than the sum of its proper divisors (9095551320).

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

4518643560 is a wasteful number, since it uses less digits than its factorization.

4518643560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161858 (or 161854 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 4518643560 is about 67220.8565848428. The cubic root of 4518643560 is about 1653.2404711039.

The spelling of 4518643560 in words is "four billion, five hundred eighteen million, six hundred forty-three thousand, five hundred sixty".