18231120606 has 8 divisors (see below), whose sum is σ = 36462241224. Its totient is φ = 6077040200.

The previous prime is 18231120587. The next prime is 18231120617. The reversal of 18231120606 is 60602113281.

It is a sphenic number, since it is the product of 3 distinct primes.

18231120606 is an admirable number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1519260045 + ... + 1519260056.

It is an arithmetic number, because the mean of its divisors is an integer number (4557780153).

Almost surely, 2^18231120606 is an apocalyptic number.

18231120606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18231120606 is a wasteful number, since it uses less digits than its factorization.

18231120606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038520106.

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 18231120606 its reverse (60602113281), we get a palindrome (78833233887).

The spelling of 18231120606 in words is "eighteen billion, two hundred thirty-one million, one hundred twenty thousand, six hundred six".