18223626066 has 32 divisors (see below), whose sum is σ = 38386483200. Its totient is φ = 5751686160.

The previous prime is 18223626011. The next prime is 18223626097. The reversal of 18223626066 is 66062632281.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170575 + ... + 256013.

It is an arithmetic number, because the mean of its divisors is an integer number (1199577600).

Almost surely, 2^18223626066 is an apocalyptic number.

18223626066 is an abundant number, since it is smaller than the sum of its proper divisors (20162857134).

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

18223626066 is a wasteful number, since it uses less digits than its factorization.

18223626066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87334.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 18223626066 in words is "eighteen billion, two hundred twenty-three million, six hundred twenty-six thousand, sixty-six".