18082320055 has 8 divisors (see below), whose sum is σ = 21734892144. Its totient is φ = 14441784000.

The previous prime is 18082320043. The next prime is 18082320073. The reversal of 18082320055 is 55002328081.

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

It is not a de Polignac number, because 18082320055 - 2²¹ = 18080222903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18082320055.

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 7 ways as a sum of consecutive naturals, for example, 3005701 + ... + 3011710.

It is an arithmetic number, because the mean of its divisors is an integer number (2716861518).

Almost surely, 2^18082320055 is an apocalyptic number.

18082320055 is a deficient number, since it is larger than the sum of its proper divisors (3652572089).

18082320055 is an equidigital number, since it uses as much as digits as its factorization.

18082320055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6018017.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 18082320055 in words is "eighteen billion, eighty-two million, three hundred twenty thousand, fifty-five".