16880677556 has 6 divisors (see below), whose sum is σ = 29541185730. Its totient is φ = 8440338776.

The previous prime is 16880677549. The next prime is 16880677609. The reversal of 16880677556 is 65577608861.

It can be written as a sum of positive squares in only one way, i.e., 16869853456 + 10824100 = 129884^2 + 3290^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16880677495 and 16880677504.

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 as a sum of consecutive naturals, namely, 2110084691 + ... + 2110084698.

It is an arithmetic number, because the mean of its divisors is an integer number (4923530955).

Almost surely, 2^16880677556 is an apocalyptic number.

It is an amenable number.

16880677556 is a deficient number, since it is larger than the sum of its proper divisors (12660508174).

16880677556 is a wasteful number, since it uses less digits than its factorization.

16880677556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220169393 (or 4220169391 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 59.

The spelling of 16880677556 in words is "sixteen billion, eight hundred eighty million, six hundred seventy-seven thousand, five hundred fifty-six".