18365803105 has 8 divisors (see below), whose sum is σ = 23734268712. Its totient is φ = 13562439168.

The previous prime is 18365803087. The next prime is 18365803139. The reversal of 18365803105 is 50130856381.

It can be written as a sum of positive squares in 4 ways, for example, as 143233024 + 18222570081 = 11968^2 + 134991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18365803105 - 2⁵ = 18365803073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141275344 + ... + 141275473.

It is an arithmetic number, because the mean of its divisors is an integer number (2966783589).

Almost surely, 2^18365803105 is an apocalyptic number.

It is an amenable number.

18365803105 is a deficient number, since it is larger than the sum of its proper divisors (5368465607).

18365803105 is a wasteful number, since it uses less digits than its factorization.

18365803105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282550835.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 18365803105 in words is "eighteen billion, three hundred sixty-five million, eight hundred three thousand, one hundred five".