108218188733641 has 4 divisors (see below), whose sum is σ = 123677929981312. Its totient is φ = 92758447485972.

The previous prime is 108218188733579. The next prime is 108218188733687. The reversal of 108218188733641 is 146337881812801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108218188733641 - 2¹⁹ = 108218188209353 is a prime.

It is a super-2 number, since 2×108218188733641² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 108218188733641.

It is not an unprimeable number, because it can be changed into a prime (108218188733741) 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, 7729870623825 + ... + 7729870623838.

It is an arithmetic number, because the mean of its divisors is an integer number (30919482495328).

Almost surely, 2^{108218188733641} is an apocalyptic number.

It is an amenable number.

108218188733641 is a deficient number, since it is larger than the sum of its proper divisors (15459741247671).

108218188733641 is an equidigital number, since it uses as much as digits as its factorization.

108218188733641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15459741247670.

The product of its (nonzero) digits is 12386304, while the sum is 61.

The spelling of 108218188733641 in words is "one hundred eight trillion, two hundred eighteen billion, one hundred eighty-eight million, seven hundred thirty-three thousand, six hundred forty-one".