104565445613 has 4 divisors (see below), whose sum is σ = 106279633308. Its totient is φ = 102851257920.

The previous prime is 104565445591. The next prime is 104565445637. The reversal of 104565445613 is 316544565401.

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 50598903364 + 53966542249 = 224942^2 + 232307^2 .

It is a cyclic number.

It is not a de Polignac number, because 104565445613 - 2⁸ = 104565445357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104565445013) 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, 857093756 + ... + 857093877.

It is an arithmetic number, because the mean of its divisors is an integer number (26569908327).

Almost surely, 2^104565445613 is an apocalyptic number.

It is an amenable number.

104565445613 is a deficient number, since it is larger than the sum of its proper divisors (1714187695).

104565445613 is an equidigital number, since it uses as much as digits as its factorization.

104565445613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714187694.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 104565445613 in words is "one hundred four billion, five hundred sixty-five million, four hundred forty-five thousand, six hundred thirteen".