18142115656 has 32 divisors (see below), whose sum is σ = 38880924480. Its totient is φ = 7774200000.

The previous prime is 18142115639. The next prime is 18142115683. The reversal of 18142115656 is 65651124181.

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 7 ways as a sum of consecutive naturals, for example, 572631 + ... + 603481.

It is an arithmetic number, because the mean of its divisors is an integer number (1215028890).

Almost surely, 2^18142115656 is an apocalyptic number.

It is an amenable number.

18142115656 is an abundant number, since it is smaller than the sum of its proper divisors (20738808824).

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

18142115656 is a wasteful number, since it uses less digits than its factorization.

18142115656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41365 (or 41361 counting only the distinct ones).

The product of its digits is 57600, while the sum is 40.

The spelling of 18142115656 in words is "eighteen billion, one hundred forty-two million, one hundred fifteen thousand, six hundred fifty-six".