18800180480 has 216 divisors, whose sum is σ = 47194140840. Its totient is φ = 7172997120.

The previous prime is 18800180431. The next prime is 18800180513. The reversal of 18800180480 is 8408100881.

It can be written as a sum of positive squares in 4 ways, for example, as 273703936 + 18526476544 = 16544^2 + 136112^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172478666 + ... + 172478774.

Almost surely, 2^18800180480 is an apocalyptic number.

18800180480 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 18800180480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23597070420).

18800180480 is an abundant number, since it is smaller than the sum of its proper divisors (28393960360).

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

18800180480 is an equidigital number, since it uses as much as digits as its factorization.

18800180480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 38.

The spelling of 18800180480 in words is "eighteen billion, eight hundred million, one hundred eighty thousand, four hundred eighty".