18003181683156 has 24 divisors (see below), whose sum is σ = 42013444966080. Its totient is φ = 6000200412672.

The previous prime is 18003181683139. The next prime is 18003181683173. The reversal of 18003181683156 is 65138618130081.

It is an interprime number because it is at equal distance from previous prime (18003181683139) and next prime (18003181683173).

It is a super-2 number, since 2×18003181683156² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18003181683099 and 18003181683108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107431336 + ... + 107598783.

It is an arithmetic number, because the mean of its divisors is an integer number (1750560206920).

Almost surely, 2^{18003181683156} is an apocalyptic number.

It is an amenable number.

18003181683156 is an abundant number, since it is smaller than the sum of its proper divisors (24010263282924).

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

18003181683156 is a wasteful number, since it uses less digits than its factorization.

18003181683156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215037103 (or 215037101 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 18003181683156 in words is "eighteen trillion, three billion, one hundred eighty-one million, six hundred eighty-three thousand, one hundred fifty-six".