108311646361 has 4 divisors (see below), whose sum is σ = 109305331300. Its totient is φ = 107317961424.

The previous prime is 108311646347. The next prime is 108311646397. The reversal of 108311646361 is 163646113801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163646113801 = 197 ⋅830690933.

It can be written as a sum of positive squares in 2 ways, for example, as 47292765961 + 61018880400 = 217469^2 + 247020^2 .

It is a cyclic number.

It is not a de Polignac number, because 108311646361 - 2⁵ = 108311646329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108311646301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496842306 + ... + 496842523.

It is an arithmetic number, because the mean of its divisors is an integer number (27326332825).

Almost surely, 2^108311646361 is an apocalyptic number.

It is an amenable number.

108311646361 is a deficient number, since it is larger than the sum of its proper divisors (993684939).

108311646361 is an equidigital number, since it uses as much as digits as its factorization.

108311646361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993684938.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 108311646361 in words is "one hundred eight billion, three hundred eleven million, six hundred forty-six thousand, three hundred sixty-one".