18160049914 has 4 divisors (see below), whose sum is σ = 27240074874. Its totient is φ = 9080024956.

The previous prime is 18160049867. The next prime is 18160049917. The reversal of 18160049914 is 41994006181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41994006181 = 12049 ⋅3485269.

It can be written as a sum of positive squares in only one way, i.e., 9480332689 + 8679717225 = 97367^2 + 93165^2 .

It is not an unprimeable number, because it can be changed into a prime (18160049917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4540012477 + ... + 4540012480.

Almost surely, 2^18160049914 is an apocalyptic number.

18160049914 is a deficient number, since it is larger than the sum of its proper divisors (9080024960).

18160049914 is an equidigital number, since it uses as much as digits as its factorization.

18160049914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9080024959.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 18160049914 in words is "eighteen billion, one hundred sixty million, forty-nine thousand, nine hundred fourteen".