104128413403565 has 8 divisors (see below), whose sum is σ = 132304337030520. Its totient is φ = 78402570092032.

The previous prime is 104128413403561. The next prime is 104128413403621. The reversal of 104128413403565 is 565304314821401.

It can be written as a sum of positive squares in 4 ways, for example, as 15119359043044 + 89009054360521 = 3888362^2 + 9434461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104128413403565 - 2² = 104128413403561 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104128413403561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612520078760 + ... + 612520078929.

It is an arithmetic number, because the mean of its divisors is an integer number (16538042128815).

Almost surely, 2^{104128413403565} is an apocalyptic number.

It is an amenable number.

104128413403565 is a deficient number, since it is larger than the sum of its proper divisors (28175923626955).

104128413403565 is a wasteful number, since it uses less digits than its factorization.

104128413403565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225040157711.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 104128413403565 in words is "one hundred four trillion, one hundred twenty-eight billion, four hundred thirteen million, four hundred three thousand, five hundred sixty-five".