8316543805601 has 4 divisors (see below), whose sum is σ = 8805752264772. Its totient is φ = 7827335346432.

The previous prime is 8316543805589. The next prime is 8316543805621. The reversal of 8316543805601 is 1065083456138.

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 7819517395600 + 497026410001 = 2796340^2 + 705001^2 .

It is a cyclic number.

It is not a de Polignac number, because 8316543805601 - 2¹⁴ = 8316543789217 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 8316543805601.

It is not an unprimeable number, because it can be changed into a prime (8316543805621) 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, 244604229560 + ... + 244604229593.

It is an arithmetic number, because the mean of its divisors is an integer number (2201438066193).

Almost surely, 2^{8316543805601} is an apocalyptic number.

It is an amenable number.

8316543805601 is a deficient number, since it is larger than the sum of its proper divisors (489208459171).

8316543805601 is a wasteful number, since it uses less digits than its factorization.

8316543805601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489208459170.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 8316543805601 in words is "eight trillion, three hundred sixteen billion, five hundred forty-three million, eight hundred five thousand, six hundred one".