16691494848 has 168 divisors, whose sum is σ = 51459560784. Its totient is φ = 4760985600.

The previous prime is 16691494837. The next prime is 16691494913. The reversal of 16691494848 is 84849419661.

It is a tau number, because it is divible by the number of its divisors (168).

It is a junction number, because it is equal to n+sod(n) for n = 16691494791 and 16691494800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7722888 + ... + 7725048.

Almost surely, 2^16691494848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16691494848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25729780392).

16691494848 is an abundant number, since it is smaller than the sum of its proper divisors (34768065936).

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

16691494848 is a wasteful number, since it uses less digits than its factorization.

16691494848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011 (or 2994 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 60.

The spelling of 16691494848 in words is "sixteen billion, six hundred ninety-one million, four hundred ninety-four thousand, eight hundred forty-eight".