845816601 has 8 divisors (see below), whose sum is σ = 1288863424. Its totient is φ = 483323760.

The previous prime is 845816599. The next prime is 845816641. The reversal of 845816601 is 106618548.

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

It is not a de Polignac number, because 845816601 - 2¹ = 845816599 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 845816601.

It is not an unprimeable number, because it can be changed into a prime (845816641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20138470 + ... + 20138511.

It is an arithmetic number, because the mean of its divisors is an integer number (161107928).

Almost surely, 2^845816601 is an apocalyptic number.

It is an amenable number.

845816601 is a deficient number, since it is larger than the sum of its proper divisors (443046823).

845816601 is a wasteful number, since it uses less digits than its factorization.

845816601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40276991.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 845816601 is about 29082.9262798639. The cubic root of 845816601 is about 945.7116411082.

The spelling of 845816601 in words is "eight hundred forty-five million, eight hundred sixteen thousand, six hundred one".