15664986168 has 64 divisors (see below), whose sum is σ = 42769036800. Its totient is φ = 4752101760.

The previous prime is 15664986151. The next prime is 15664986187. The reversal of 15664986168 is 86168946651.

15664986168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331428 + ... + 375731.

It is an arithmetic number, because the mean of its divisors is an integer number (668266200).

Almost surely, 2^15664986168 is an apocalyptic number.

It is an amenable number.

15664986168 is an abundant number, since it is smaller than the sum of its proper divisors (27104050632).

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

15664986168 is a wasteful number, since it uses less digits than its factorization.

15664986168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707252 (or 707248 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 60.

The spelling of 15664986168 in words is "fifteen billion, six hundred sixty-four million, nine hundred eighty-six thousand, one hundred sixty-eight".