18006222676 has 24 divisors (see below), whose sum is σ = 34130976264. Its totient is φ = 8262522240.

The previous prime is 18006222629. The next prime is 18006222677. The reversal of 18006222676 is 67622260081.

It can be written as a sum of positive squares in 4 ways, for example, as 7695851076 + 10310371600 = 87726^2 + 101540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18006222677) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 991795 + ... + 1009786.

It is an arithmetic number, because the mean of its divisors is an integer number (1422124011).

Almost surely, 2^18006222676 is an apocalyptic number.

It is an amenable number.

18006222676 is a deficient number, since it is larger than the sum of its proper divisors (16124753588).

18006222676 is a wasteful number, since it uses less digits than its factorization.

18006222676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001771 (or 2001769 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 18006222676 in words is "eighteen billion, six million, two hundred twenty-two thousand, six hundred seventy-six".