8079817656 has 16 divisors (see below), whose sum is σ = 20199544200. Its totient is φ = 2693272544.

The previous prime is 8079817589. The next prime is 8079817661. The reversal of 8079817656 is 6567189708.

It is a junction number, because it is equal to n+sod(n) for n = 8079817596 and 8079817605.

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 3 ways as a sum of consecutive naturals, for example, 168329511 + ... + 168329558.

Almost surely, 2^8079817656 is an apocalyptic number.

It is an amenable number.

8079817656 is an abundant number, since it is smaller than the sum of its proper divisors (12119726544).

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

8079817656 is a wasteful number, since it uses less digits than its factorization.

8079817656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336659078 (or 336659074 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 57.

The square root of 8079817656 is about 89887.8059360668. The cubic root of 8079817656 is about 2006.6294721028.

The spelling of 8079817656 in words is "eight billion, seventy-nine million, eight hundred seventeen thousand, six hundred fifty-six".