16681683336 has 16 divisors (see below), whose sum is σ = 41704208400. Its totient is φ = 5560561104.

The previous prime is 16681683331. The next prime is 16681683341. The reversal of 16681683336 is 63338618661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16681683331) and next prime (16681683341).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (16681683331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347535046 + ... + 347535093.

It is an arithmetic number, because the mean of its divisors is an integer number (2606513025).

Almost surely, 2^16681683336 is an apocalyptic number.

It is an amenable number.

16681683336 is an abundant number, since it is smaller than the sum of its proper divisors (25022525064).

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

16681683336 is a wasteful number, since it uses less digits than its factorization.

16681683336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695070148 (or 695070144 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 51.

The spelling of 16681683336 in words is "sixteen billion, six hundred eighty-one million, six hundred eighty-three thousand, three hundred thirty-six".