18014417220 has 48 divisors (see below), whose sum is σ = 50666595840. Its totient is φ = 4782299136.

The previous prime is 18014417219. The next prime is 18014417249. The reversal of 18014417220 is 2271441081.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659805 + ... + 686564.

It is an arithmetic number, because the mean of its divisors is an integer number (1055554080).

Almost surely, 2^18014417220 is an apocalyptic number.

18014417220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18014417220 is an abundant number, since it is smaller than the sum of its proper divisors (32652178620).

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

18014417220 is a wasteful number, since it uses less digits than its factorization.

18014417220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346604 (or 1346602 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The spelling of 18014417220 in words is "eighteen billion, fourteen million, four hundred seventeen thousand, two hundred twenty".