18006011223 has 16 divisors (see below), whose sum is σ = 24149300736. Its totient is φ = 11933555040.

The previous prime is 18006011209. The next prime is 18006011251. The reversal of 18006011223 is 32211060081.

It is not a de Polignac number, because 18006011223 - 2¹² = 18006007127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18006011193 and 18006011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18006011203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360813 + ... + 407673.

It is an arithmetic number, because the mean of its divisors is an integer number (1509331296).

Almost surely, 2^18006011223 is an apocalyptic number.

18006011223 is a deficient number, since it is larger than the sum of its proper divisors (6143289513).

18006011223 is a wasteful number, since it uses less digits than its factorization.

18006011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47614.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 18006011223 in words is "eighteen billion, six million, eleven thousand, two hundred twenty-three".