18160487603 has 16 divisors (see below), whose sum is σ = 19581070080. Its totient is φ = 16787209824.

The previous prime is 18160487573. The next prime is 18160487621. The reversal of 18160487603 is 30678406181.

It is a cyclic number.

It is not a de Polignac number, because 18160487603 - 2⁸ = 18160487347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18160487633) 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 15 ways as a sum of consecutive naturals, for example, 816650 + ... + 838592.

It is an arithmetic number, because the mean of its divisors is an integer number (1223816880).

Almost surely, 2^18160487603 is an apocalyptic number.

18160487603 is a deficient number, since it is larger than the sum of its proper divisors (1420582477).

18160487603 is a wasteful number, since it uses less digits than its factorization.

18160487603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23018.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 18160487603 in words is "eighteen billion, one hundred sixty million, four hundred eighty-seven thousand, six hundred three".