104104345505 has 4 divisors (see below), whose sum is σ = 124925214612. Its totient is φ = 83283476400.

The previous prime is 104104345487. The next prime is 104104345507. The reversal of 104104345505 is 505543401401.

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 27437934736 + 76666410769 = 165644^2 + 276887^2 .

It is not a de Polignac number, because 104104345505 - 2¹⁶ = 104104279969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104104345507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10410434546 + ... + 10410434555.

It is an arithmetic number, because the mean of its divisors is an integer number (31231303653).

Almost surely, 2^104104345505 is an apocalyptic number.

It is an amenable number.

104104345505 is a deficient number, since it is larger than the sum of its proper divisors (20820869107).

104104345505 is an equidigital number, since it uses as much as digits as its factorization.

104104345505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20820869106.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 104104345505 its reverse (505543401401), we get a palindrome (609647746906).

The spelling of 104104345505 in words is "one hundred four billion, one hundred four million, three hundred forty-five thousand, five hundred five".