18260301220 has 96 divisors (see below), whose sum is σ = 45864000000. Its totient is φ = 5970945024.

The previous prime is 18260301217. The next prime is 18260301233. The reversal of 18260301220 is 2210306281.

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, 1115656 + ... + 1131904.

It is an arithmetic number, because the mean of its divisors is an integer number (477750000).

Almost surely, 2^18260301220 is an apocalyptic number.

18260301220 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 18260301220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22932000000).

18260301220 is an abundant number, since it is smaller than the sum of its proper divisors (27603698780).

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

18260301220 is a wasteful number, since it uses less digits than its factorization.

18260301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16637 (or 16635 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 18260301220 in words is "eighteen billion, two hundred sixty million, three hundred one thousand, two hundred twenty".