18069065888 has 24 divisors (see below), whose sum is σ = 35809068960. Its totient is φ = 8974699200.

The previous prime is 18069065851. The next prime is 18069065891. The reversal of 18069065888 is 88856096081.

It is a super-2 number, since 2×18069065888² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864898 + ... + 1874561.

It is an arithmetic number, because the mean of its divisors is an integer number (1492044540).

Almost surely, 2^18069065888 is an apocalyptic number.

It is an amenable number.

18069065888 is a deficient number, since it is larger than the sum of its proper divisors (17740003072).

18069065888 is a wasteful number, since it uses less digits than its factorization.

18069065888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739620 (or 3739612 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 59.

The spelling of 18069065888 in words is "eighteen billion, sixty-nine million, sixty-five thousand, eight hundred eighty-eight".