16684538560 has 56 divisors (see below), whose sum is σ = 41457469536. Its totient is φ = 6383646720.

The previous prime is 16684538473. The next prime is 16684538567. The reversal of 16684538560 is 6583548661.

It is a junction number, because it is equal to n+sod(n) for n = 16684538498 and 16684538507.

It is not an unprimeable number, because it can be changed into a prime (16684538567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1126101 + ... + 1140820.

It is an arithmetic number, because the mean of its divisors is an integer number (740311956).

Almost surely, 2^16684538560 is an apocalyptic number.

16684538560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16684538560 is an abundant number, since it is smaller than the sum of its proper divisors (24772930976).

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

16684538560 is a wasteful number, since it uses less digits than its factorization.

16684538560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266961 (or 2266951 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 16684538560 in words is "sixteen billion, six hundred eighty-four million, five hundred thirty-eight thousand, five hundred sixty".