16326819684 has 36 divisors (see below), whose sum is σ = 47166368704. Its totient is φ = 4664805552.

The previous prime is 16326819647. The next prime is 16326819709. The reversal of 16326819684 is 48691862361.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16326819684.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32394232 + ... + 32394735.

Almost surely, 2^16326819684 is an apocalyptic number.

16326819684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16326819684 is an abundant number, since it is smaller than the sum of its proper divisors (30839549020).

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

16326819684 is a wasteful number, since it uses less digits than its factorization.

16326819684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64788984 (or 64788979 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 16326819684 in words is "sixteen billion, three hundred twenty-six million, eight hundred nineteen thousand, six hundred eighty-four".