18065715888404 has 24 divisors (see below), whose sum is σ = 31753851171840. Its totient is φ = 8993270767424.

The previous prime is 18065715888401. The next prime is 18065715888413. The reversal of 18065715888404 is 40488851756081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18065715888401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9610169 + ... + 11335200.

It is an arithmetic number, because the mean of its divisors is an integer number (1323077132160).

Almost surely, 2^{18065715888404} is an apocalyptic number.

It is an amenable number.

18065715888404 is a deficient number, since it is larger than the sum of its proper divisors (13688135283436).

18065715888404 is a wasteful number, since it uses less digits than its factorization.

18065715888404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20946319 (or 20946317 counting only the distinct ones).

The product of its (nonzero) digits is 68812800, while the sum is 65.

The spelling of 18065715888404 in words is "eighteen trillion, sixty-five billion, seven hundred fifteen million, eight hundred eighty-eight thousand, four hundred four".