18110182440 has 192 divisors, whose sum is σ = 63434707200. Its totient is φ = 4124155392.

The previous prime is 18110182411. The next prime is 18110182459. The reversal of 18110182440 is 4428101181.

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

It is a junction number, because it is equal to n+sod(n) for n = 18110182398 and 18110182407.

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 47 ways as a sum of consecutive naturals, for example, 1623201 + ... + 1634319.

It is an arithmetic number, because the mean of its divisors is an integer number (330389100).

Almost surely, 2^18110182440 is an apocalyptic number.

18110182440 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 18110182440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31717353600).

18110182440 is an abundant number, since it is smaller than the sum of its proper divisors (45324524760).

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

18110182440 is a wasteful number, since it uses less digits than its factorization.

18110182440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11424 (or 11413 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The spelling of 18110182440 in words is "eighteen billion, one hundred ten million, one hundred eighty-two thousand, four hundred forty".