18000606888 has 256 divisors, whose sum is σ = 56263680000. Its totient is φ = 5285813760.

The previous prime is 18000606887. The next prime is 18000606901. The reversal of 18000606888 is 88860600081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18000606887) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 10232553 + ... + 10234311.

It is an arithmetic number, because the mean of its divisors is an integer number (219780000).

Almost surely, 2^18000606888 is an apocalyptic number.

18000606888 is a gapful number since it is divisible by the number (18) 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 18000606888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28131840000).

18000606888 is an abundant number, since it is smaller than the sum of its proper divisors (38263073112).

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

18000606888 is a wasteful number, since it uses less digits than its factorization.

18000606888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917 (or 1907 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 18000606888 in words is "eighteen billion, six hundred six thousand, eight hundred eighty-eight".