18054476220 has 192 divisors, whose sum is σ = 57361328640. Its totient is φ = 4204569600.

The previous prime is 18054476203. The next prime is 18054476227. The reversal of 18054476220 is 2267445081.

It is a super-3 number, since 3×18054476220³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18054476227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1725966 + ... + 1736394.

It is an arithmetic number, because the mean of its divisors is an integer number (298756920).

Almost surely, 2^18054476220 is an apocalyptic number.

18054476220 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 18054476220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28680664320).

18054476220 is an abundant number, since it is smaller than the sum of its proper divisors (39306852420).

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

18054476220 is a wasteful number, since it uses less digits than its factorization.

18054476220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556 (or 10554 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 18054476220 in words is "eighteen billion, fifty-four million, four hundred seventy-six thousand, two hundred twenty".