18041082503 has 8 divisors (see below), whose sum is σ = 18136697040. Its totient is φ = 17945509120.

The previous prime is 18041082473. The next prime is 18041082517. The reversal of 18041082503 is 30528014081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18041082503 - 2²⁰ = 18040033927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18041082503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18041082593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310888 + ... + 1324578.

It is an arithmetic number, because the mean of its divisors is an integer number (2267087130).

Almost surely, 2^18041082503 is an apocalyptic number.

18041082503 is a deficient number, since it is larger than the sum of its proper divisors (95614537).

18041082503 is a wasteful number, since it uses less digits than its factorization.

18041082503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20577.

The product of its (nonzero) digits is 7680, while the sum is 32.

Adding to 18041082503 its reverse (30528014081), we get a palindrome (48569096584).

The spelling of 18041082503 in words is "eighteen billion, forty-one million, eighty-two thousand, five hundred three".