18105764516 has 12 divisors (see below), whose sum is σ = 36211529088. Its totient is φ = 7759613352.

The previous prime is 18105764423. The next prime is 18105764527. The reversal of 18105764516 is 61546750181.

18105764516 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 323317196 + ... + 323317251.

It is an arithmetic number, because the mean of its divisors is an integer number (3017627424).

Almost surely, 2^18105764516 is an apocalyptic number.

It is an amenable number.

18105764516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18105764516 is a wasteful number, since it uses less digits than its factorization.

18105764516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646634458 (or 646634456 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 18105764516 in words is "eighteen billion, one hundred five million, seven hundred sixty-four thousand, five hundred sixteen".