16841620866 has 32 divisors (see below), whose sum is σ = 38532498048. Its totient is φ = 4807221120.

The previous prime is 16841620853. The next prime is 16841620871. The reversal of 16841620866 is 66802614861.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150705 + ... + 237476.

It is an arithmetic number, because the mean of its divisors is an integer number (1204140564).

Almost surely, 2^16841620866 is an apocalyptic number.

16841620866 is an abundant number, since it is smaller than the sum of its proper divisors (21690877182).

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

16841620866 is a wasteful number, since it uses less digits than its factorization.

16841620866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389226.

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 16841620866 in words is "sixteen billion, eight hundred forty-one million, six hundred twenty thousand, eight hundred sixty-six".