18316680336 has 200 divisors, whose sum is σ = 55079323904. Its totient is φ = 5870257920.

The previous prime is 18316680299. The next prime is 18316680337. The reversal of 18316680336 is 63308661381.

18316680336 is a `hidden beast` number, since 1 + 83 + 166 + 80 + 336 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 18316680291 and 18316680300.

It is not an unprimeable number, because it can be changed into a prime (18316680337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6547290 + ... + 6550086.

Almost surely, 2^18316680336 is an apocalyptic number.

18316680336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18316680336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27539661952).

18316680336 is an abundant number, since it is smaller than the sum of its proper divisors (36762643568).

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

18316680336 is a wasteful number, since it uses less digits than its factorization.

18316680336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011 (or 2996 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 18316680336 in words is "eighteen billion, three hundred sixteen million, six hundred eighty thousand, three hundred thirty-six".