16768870856 has 32 divisors (see below), whose sum is σ = 33297580440. Its totient is φ = 7889707008.

The previous prime is 16768870847. The next prime is 16768870927. The reversal of 16768870856 is 65807886761.

It can be written as a sum of positive squares in 4 ways, for example, as 15318022756 + 1450848100 = 123766^2 + 38090^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022336 + ... + 1038608.

Almost surely, 2^16768870856 is an apocalyptic number.

It is an amenable number.

16768870856 is a deficient number, since it is larger than the sum of its proper divisors (16528709584).

16768870856 is a wasteful number, since it uses less digits than its factorization.

16768870856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23873 (or 23869 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 62.

The spelling of 16768870856 in words is "sixteen billion, seven hundred sixty-eight million, eight hundred seventy thousand, eight hundred fifty-six".