18685018335003 has 16 divisors (see below), whose sum is σ = 25336372905600. Its totient is φ = 12245183907840.

The previous prime is 18685018334839. The next prime is 18685018335007. The reversal of 18685018335003 is 30053381058681.

It is not a de Polignac number, because 18685018335003 - 2¹² = 18685018330907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18685018335007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4450203 + ... + 7561371.

It is an arithmetic number, because the mean of its divisors is an integer number (1583523306600).

Almost surely, 2^{18685018335003} is an apocalyptic number.

18685018335003 is a deficient number, since it is larger than the sum of its proper divisors (6651354570597).

18685018335003 is a wasteful number, since it uses less digits than its factorization.

18685018335003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145162.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 18685018335003 in words is "eighteen trillion, six hundred eighty-five billion, eighteen million, three hundred thirty-five thousand, three".