18500441340206 has 8 divisors (see below), whose sum is σ = 31715042297520. Its totient is φ = 7928760574368.

The previous prime is 18500441340179. The next prime is 18500441340301. The reversal of 18500441340206 is 60204314400581.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18500441340206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660730047851 + ... + 660730047878.

It is an arithmetic number, because the mean of its divisors is an integer number (3964380287190).

Almost surely, 2^{18500441340206} is an apocalyptic number.

18500441340206 is a deficient number, since it is larger than the sum of its proper divisors (13214600957314).

18500441340206 is a wasteful number, since it uses less digits than its factorization.

18500441340206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321460095738.

The product of its (nonzero) digits is 92160, while the sum is 38.

Adding to 18500441340206 its reverse (60204314400581), we get a palindrome (78704755740787).

The spelling of 18500441340206 in words is "eighteen trillion, five hundred billion, four hundred forty-one million, three hundred forty thousand, two hundred six".