18112331652 has 12 divisors (see below), whose sum is σ = 42262107216. Its totient is φ = 6037443880.

The previous prime is 18112331639. The next prime is 18112331747. The reversal of 18112331652 is 25613321181.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 754680474 + ... + 754680497.

It is an arithmetic number, because the mean of its divisors is an integer number (3521842268).

Almost surely, 2^18112331652 is an apocalyptic number.

18112331652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18112331652 is an abundant number, since it is smaller than the sum of its proper divisors (24149775564).

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

18112331652 is a wasteful number, since it uses less digits than its factorization.

18112331652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509360978 (or 1509360976 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The spelling of 18112331652 in words is "eighteen billion, one hundred twelve million, three hundred thirty-one thousand, six hundred fifty-two".