16505065316 has 12 divisors (see below), whose sum is σ = 28952802480. Its totient is φ = 8232836040.

The previous prime is 16505065279. The next prime is 16505065321. The reversal of 16505065316 is 61356050561.

It is a self number, because there is not a number n which added to its sum of digits gives 16505065316.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4922270 + ... + 4925621.

It is an arithmetic number, because the mean of its divisors is an integer number (2412733540).

Almost surely, 2^16505065316 is an apocalyptic number.

It is an amenable number.

16505065316 is a deficient number, since it is larger than the sum of its proper divisors (12447737164).

16505065316 is a wasteful number, since it uses less digits than its factorization.

16505065316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848314 (or 9848312 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 16505065316 in words is "sixteen billion, five hundred five million, sixty-five thousand, three hundred sixteen".