16688871670 has 8 divisors (see below), whose sum is σ = 30039969024. Its totient is φ = 6675548664.

The previous prime is 16688871649. The next prime is 16688871671. The reversal of 16688871670 is 7617888661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16688871671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834443574 + ... + 834443593.

It is an arithmetic number, because the mean of its divisors is an integer number (3754996128).

Almost surely, 2^16688871670 is an apocalyptic number.

16688871670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16688871670 is a deficient number, since it is larger than the sum of its proper divisors (13351097354).

16688871670 is a wasteful number, since it uses less digits than its factorization.

16688871670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668887174.

The product of its (nonzero) digits is 5419008, while the sum is 58.

The spelling of 16688871670 in words is "sixteen billion, six hundred eighty-eight million, eight hundred seventy-one thousand, six hundred seventy".