104665321361 has 4 divisors (see below), whose sum is σ = 104666688000. Its totient is φ = 104663954724.

The previous prime is 104665321339. The next prime is 104665321367. The reversal of 104665321361 is 163123566401.

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 a de Polignac number, because none of the positive numbers 2^k-104665321361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104665321367) 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, 561161 + ... + 724038.

It is an arithmetic number, because the mean of its divisors is an integer number (26166672000).

Almost surely, 2^104665321361 is an apocalyptic number.

It is an amenable number.

104665321361 is a deficient number, since it is larger than the sum of its proper divisors (1366639).

104665321361 is an equidigital number, since it uses as much as digits as its factorization.

104665321361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366638.

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 104665321361 its reverse (163123566401), we get a palindrome (267788887762).

The spelling of 104665321361 in words is "one hundred four billion, six hundred sixty-five million, three hundred twenty-one thousand, three hundred sixty-one".