327423803583161 has 4 divisors (see below), whose sum is σ = 328782408577524. Its totient is φ = 326065198588800.

The previous prime is 327423803583143. The next prime is 327423803583187. The reversal of 327423803583161 is 161385308324723.

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

It can be written as a sum of positive squares in 2 ways, for example, as 171395724728761 + 156028078854400 = 13091819^2 + 12491120^2 .

It is a cyclic number.

It is not a de Polignac number, because 327423803583161 - 2²² = 327423799388857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 327423803583097 and 327423803583106.

It is not an unprimeable number, because it can be changed into a prime (327423803583361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679302496820 + ... + 679302497301.

It is an arithmetic number, because the mean of its divisors is an integer number (82195602144381).

Almost surely, 2^{327423803583161} is an apocalyptic number.

It is an amenable number.

327423803583161 is a deficient number, since it is larger than the sum of its proper divisors (1358604994363).

327423803583161 is a wasteful number, since it uses less digits than its factorization.

327423803583161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358604994362.

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 327423803583161 in words is "three hundred twenty-seven trillion, four hundred twenty-three billion, eight hundred three million, five hundred eighty-three thousand, one hundred sixty-one".