18205841106 has 12 divisors (see below), whose sum is σ = 39445989102. Its totient is φ = 6068613696.

The previous prime is 18205841063. The next prime is 18205841113. The reversal of 18205841106 is 60114850281.

It can be written as a sum of positive squares in only one way, i.e., 14366179881 + 3839661225 = 119859^2 + 61965^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505717791 + ... + 505717826.

Almost surely, 2^18205841106 is an apocalyptic number.

18205841106 is an abundant number, since it is smaller than the sum of its proper divisors (21240147996).

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

18205841106 is a wasteful number, since it uses less digits than its factorization.

18205841106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011435625 (or 1011435622 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 18205841106 in words is "eighteen billion, two hundred five million, eight hundred forty-one thousand, one hundred six".