16117879816 has 32 divisors (see below), whose sum is σ = 31962434400. Its totient is φ = 7598586240.

The previous prime is 16117879781. The next prime is 16117879847. The reversal of 16117879816 is 61897871161.

It is a happy number.

It is an unprimeable number.

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, 219205 + ... + 283348.

It is an arithmetic number, because the mean of its divisors is an integer number (998826075).

Almost surely, 2^16117879816 is an apocalyptic number.

It is an amenable number.

16117879816 is a deficient number, since it is larger than the sum of its proper divisors (15844554584).

16117879816 is a wasteful number, since it uses less digits than its factorization.

16117879816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502789 (or 502785 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 55.

The spelling of 16117879816 in words is "sixteen billion, one hundred seventeen million, eight hundred seventy-nine thousand, eight hundred sixteen".