16836868666850 has 48 divisors (see below), whose sum is σ = 31523507444520. Its totient is φ = 6690326169600.

The previous prime is 16836868666819. The next prime is 16836868666867. The reversal of 16836868666850 is 5866686863861.

16836868666850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 8454969354049 + 8381899312801 = 2907743^2 + 2895151^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7406144 + ... + 9408756.

Almost surely, 2^{16836868666850} is an apocalyptic number.

16836868666850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16836868666850 is a deficient number, since it is larger than the sum of its proper divisors (14686638777670).

16836868666850 is a wasteful number, since it uses less digits than its factorization.

16836868666850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003735 (or 2003730 counting only the distinct ones).

The product of its (nonzero) digits is 2866544640, while the sum is 77.

The spelling of 16836868666850 in words is "sixteen trillion, eight hundred thirty-six billion, eight hundred sixty-eight million, six hundred sixty-six thousand, eight hundred fifty".