9916395816 has 32 divisors (see below), whose sum is σ = 25590700800. Its totient is φ = 3198837120.

The previous prime is 9916395809. The next prime is 9916395821. The reversal of 9916395816 is 6185936199.

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, 6663501 + ... + 6664988.

It is an arithmetic number, because the mean of its divisors is an integer number (799709400).

Almost surely, 2^9916395816 is an apocalyptic number.

It is an amenable number.

9916395816 is an abundant number, since it is smaller than the sum of its proper divisors (15674304984).

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

9916395816 is a wasteful number, since it uses less digits than its factorization.

9916395816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13328529 (or 13328525 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 57.

The square root of 9916395816 is about 99581.1017010758. The cubic root of 9916395816 is about 2148.4138881123.

The spelling of 9916395816 in words is "nine billion, nine hundred sixteen million, three hundred ninety-five thousand, eight hundred sixteen".