18034815156 has 24 divisors (see below), whose sum is σ = 42301561344. Its totient is φ = 5980129920.

The previous prime is 18034815091. The next prime is 18034815157. The reversal of 18034815156 is 65151843081.

It is a super-2 number, since 2×18034815156² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18034815157) 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 7 ways as a sum of consecutive naturals, for example, 3932005 + ... + 3936588.

It is an arithmetic number, because the mean of its divisors is an integer number (1762565056).

Almost surely, 2^18034815156 is an apocalyptic number.

It is an amenable number.

18034815156 is an abundant number, since it is smaller than the sum of its proper divisors (24266746188).

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

18034815156 is a wasteful number, since it uses less digits than its factorization.

18034815156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7868791 (or 7868789 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 18034815156 in words is "eighteen billion, thirty-four million, eight hundred fifteen thousand, one hundred fifty-six".