18168318103 has 8 divisors (see below), whose sum is σ = 19658613296. Its totient is φ = 16691270400.

The previous prime is 18168318101. The next prime is 18168318107. The reversal of 18168318103 is 30181386181.

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 18168318103 - 2¹ = 18168318101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18168318101) 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, 3309018 + ... + 3314503.

It is an arithmetic number, because the mean of its divisors is an integer number (2457326662).

Almost surely, 2^18168318103 is an apocalyptic number.

18168318103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18168318103 is a deficient number, since it is larger than the sum of its proper divisors (1490295193).

18168318103 is a wasteful number, since it uses less digits than its factorization.

18168318103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6623745.

The product of its (nonzero) digits is 27648, while the sum is 40.

The spelling of 18168318103 in words is "eighteen billion, one hundred sixty-eight million, three hundred eighteen thousand, one hundred three".