18160738815 has 16 divisors (see below), whose sum is σ = 29081166048. Its totient is φ = 9677732736.

The previous prime is 18160738811. The next prime is 18160738867. The reversal of 18160738815 is 51883706181.

It is not a de Polignac number, because 18160738815 - 2² = 18160738811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18160738811) 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, 480864 + ... + 517253.

It is an arithmetic number, because the mean of its divisors is an integer number (1817572878).

Almost surely, 2^18160738815 is an apocalyptic number.

18160738815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18160738815 is a deficient number, since it is larger than the sum of its proper divisors (10920427233).

18160738815 is a wasteful number, since it uses less digits than its factorization.

18160738815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999338.

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 18160738815 in words is "eighteen billion, one hundred sixty million, seven hundred thirty-eight thousand, eight hundred fifteen".