15984128985606 has 48 divisors (see below), whose sum is σ = 35292795033600. Its totient is φ = 5226802282224.

The previous prime is 15984128985593. The next prime is 15984128985631. The reversal of 15984128985606 is 60658982148951.

15984128985606 is a `hidden beast` number, since 1 + 5 + 9 + 8 + 4 + 1 + 2 + 8 + 9 + 8 + 5 + 606 = 666.

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 23 ways as a sum of consecutive naturals, for example, 15202126 + ... + 16219521.

It is an arithmetic number, because the mean of its divisors is an integer number (735266563200).

Almost surely, 2^{15984128985606} is an apocalyptic number.

15984128985606 is an abundant number, since it is smaller than the sum of its proper divisors (19308666047994).

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

15984128985606 is a wasteful number, since it uses less digits than its factorization.

15984128985606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31422193 (or 31422190 counting only the distinct ones).

The product of its (nonzero) digits is 298598400, while the sum is 72.

The spelling of 15984128985606 in words is "fifteen trillion, nine hundred eighty-four billion, one hundred twenty-eight million, nine hundred eighty-five thousand, six hundred six".