18111018372480 has 1536 divisors, whose sum is σ = 72909704448000. Its totient is φ = 4213024358400.

The previous prime is 18111018372479. The next prime is 18111018372493. The reversal of 18111018372480 is 8427381011181.

18111018372480 is a `hidden beast` number, since 1 + 8 + 11 + 10 + 1 + 83 + 72 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 20557341640 + ... + 20557342520.

It is an arithmetic number, because the mean of its divisors is an integer number (47467255500).

Almost surely, 2^{18111018372480} is an apocalyptic number.

18111018372480 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 18111018372480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36454852224000).

18111018372480 is an abundant number, since it is smaller than the sum of its proper divisors (54798686075520).

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

18111018372480 is a wasteful number, since it uses less digits than its factorization.

18111018372480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 45.

The spelling of 18111018372480 in words is "eighteen trillion, one hundred eleven billion, eighteen million, three hundred seventy-two thousand, four hundred eighty".