18105290023159 has 4 divisors (see below), whose sum is σ = 18284550320520. Its totient is φ = 17926029725800.

The previous prime is 18105290023147. The next prime is 18105290023229. The reversal of 18105290023159 is 95132009250181.

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

It is a cyclic number.

It is not a de Polignac number, because 18105290023159 - 2¹⁷ = 18105289892087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18105290023129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89630148529 + ... + 89630148730.

It is an arithmetic number, because the mean of its divisors is an integer number (4571137580130).

Almost surely, 2^{18105290023159} is an apocalyptic number.

18105290023159 is a deficient number, since it is larger than the sum of its proper divisors (179260297361).

18105290023159 is a wasteful number, since it uses less digits than its factorization.

18105290023159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179260297360.

The product of its (nonzero) digits is 194400, while the sum is 46.

The spelling of 18105290023159 in words is "eighteen trillion, one hundred five billion, two hundred ninety million, twenty-three thousand, one hundred fifty-nine".