16689316576 has 24 divisors (see below), whose sum is σ = 32956379064. Its totient is φ = 8319442560.

The previous prime is 16689316543. The next prime is 16689316583. The reversal of 16689316576 is 67561398661.

It is a self number, because there is not a number n which added to its sum of digits gives 16689316576.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777235 + ... + 798418.

It is an arithmetic number, because the mean of its divisors is an integer number (1373182461).

Almost surely, 2^16689316576 is an apocalyptic number.

16689316576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16689316576 is a deficient number, since it is larger than the sum of its proper divisors (16267062488).

16689316576 is a wasteful number, since it uses less digits than its factorization.

16689316576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575994 (or 1575986 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 58.

The spelling of 16689316576 in words is "sixteen billion, six hundred eighty-nine million, three hundred sixteen thousand, five hundred seventy-six".