816784109016 has 16 divisors (see below), whose sum is σ = 2041960272600. Its totient is φ = 272261369664.

The previous prime is 816784108981. The next prime is 816784109027. The reversal of 816784109016 is 610901487618.

It is a self number, because there is not a number n which added to its sum of digits gives 816784109016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17016335581 + ... + 17016335628.

Almost surely, 2^816784109016 is an apocalyptic number.

It is an amenable number.

816784109016 is an abundant number, since it is smaller than the sum of its proper divisors (1225176163584).

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

816784109016 is a wasteful number, since it uses less digits than its factorization.

816784109016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34032671218 (or 34032671214 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 816784109016 in words is "eight hundred sixteen billion, seven hundred eighty-four million, one hundred nine thousand, sixteen".