104563660661545 has 8 divisors (see below), whose sum is σ = 127843871903496. Its totient is φ = 82072609122816.

The previous prime is 104563660661533. The next prime is 104563660661737. The reversal of 104563660661545 is 545166066365401.

It can be written as a sum of positive squares in 4 ways, for example, as 42037445009641 + 62526215651904 = 6483629^2 + 7907352^2 .

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 104563660661545 - 2¹⁷ = 104563660530473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104563660661545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197289925512 + ... + 197289926041.

It is an arithmetic number, because the mean of its divisors is an integer number (15980483987937).

Almost surely, 2^{104563660661545} is an apocalyptic number.

It is an amenable number.

104563660661545 is a deficient number, since it is larger than the sum of its proper divisors (23280211241951).

104563660661545 is an equidigital number, since it uses as much as digits as its factorization.

104563660661545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394579851611.

The product of its (nonzero) digits is 46656000, while the sum is 58.

The spelling of 104563660661545 in words is "one hundred four trillion, five hundred sixty-three billion, six hundred sixty million, six hundred sixty-one thousand, five hundred forty-five".