18160766808 has 128 divisors (see below), whose sum is σ = 48688128000. Its totient is φ = 5628147840.

The previous prime is 18160766791. The next prime is 18160766933. The reversal of 18160766808 is 80866706181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7736691 + ... + 7739037.

It is an arithmetic number, because the mean of its divisors is an integer number (380376000).

Almost surely, 2^18160766808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18160766808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24344064000).

18160766808 is an abundant number, since it is smaller than the sum of its proper divisors (30527361192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18160766808 is a wasteful number, since it uses less digits than its factorization.

18160766808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685 (or 2681 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 18160766808 in words is "eighteen billion, one hundred sixty million, seven hundred sixty-six thousand, eight hundred eight".