18418361055 has 16 divisors (see below), whose sum is σ = 29701423104. Its totient is φ = 9745777440.

The previous prime is 18418361023. The next prime is 18418361057. The reversal of 18418361055 is 55016381481.

It is not a de Polignac number, because 18418361055 - 2⁵ = 18418361023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18418360998 and 18418361016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18418361057) by changing a digit.

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, 4832311 + ... + 4836120.

It is an arithmetic number, because the mean of its divisors is an integer number (1856338944).

Almost surely, 2^18418361055 is an apocalyptic number.

18418361055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18418361055 is a deficient number, since it is larger than the sum of its proper divisors (11283062049).

18418361055 is a wasteful number, since it uses less digits than its factorization.

18418361055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9668566.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 18418361055 in words is "eighteen billion, four hundred eighteen million, three hundred sixty-one thousand, fifty-five".