18228223606 has 4 divisors (see below), whose sum is σ = 27342335412. Its totient is φ = 9114111802.

The previous prime is 18228223577. The next prime is 18228223639. The reversal of 18228223606 is 60632282281.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4557055900 + ... + 4557055903.

It is an arithmetic number, because the mean of its divisors is an integer number (6835583853).

Almost surely, 2^18228223606 is an apocalyptic number.

18228223606 is a deficient number, since it is larger than the sum of its proper divisors (9114111806).

18228223606 is an equidigital number, since it uses as much as digits as its factorization.

18228223606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114111805.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 18228223606 in words is "eighteen billion, two hundred twenty-eight million, two hundred twenty-three thousand, six hundred six".