8503566816 has 48 divisors (see below), whose sum is σ = 22374990288. Its totient is φ = 2827776000.

The previous prime is 8503566767. The next prime is 8503566823. The reversal of 8503566816 is 6186653058.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64785 + ... + 145616.

It is an arithmetic number, because the mean of its divisors is an integer number (466145631).

Almost surely, 2^8503566816 is an apocalyptic number.

It is an amenable number.

8503566816 is an abundant number, since it is smaller than the sum of its proper divisors (13871423472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8503566816 is a wasteful number, since it uses less digits than its factorization.

8503566816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210835 (or 210827 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 8503566816 is about 92214.7863197654. The cubic root of 8503566816 is about 2041.1129720729.

The spelling of 8503566816 in words is "eight billion, five hundred three million, five hundred sixty-six thousand, eight hundred sixteen".