18575522560 has 144 divisors (see below), whose sum is σ = 50952799296. Its totient is φ = 6355943424.

The previous prime is 18575522533. The next prime is 18575522561. The reversal of 18575522560 is 6522557581.

It is a self number, because there is not a number n which added to its sum of digits gives 18575522560.

It is not an unprimeable number, because it can be changed into a prime (18575522561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5168124 + ... + 5171716.

It is an arithmetic number, because the mean of its divisors is an integer number (353838884).

Almost surely, 2^18575522560 is an apocalyptic number.

18575522560 is a gapful number since it is divisible by the number (10) 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 18575522560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25476399648).

18575522560 is an abundant number, since it is smaller than the sum of its proper divisors (32377276736).

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

18575522560 is an equidigital number, since it uses as much as digits as its factorization.

18575522560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198 (or 4184 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 46.

The spelling of 18575522560 in words is "eighteen billion, five hundred seventy-five million, five hundred twenty-two thousand, five hundred sixty".