16505565600166 has 8 divisors (see below), whose sum is σ = 24758465226264. Its totient is φ = 8252743858080.

The previous prime is 16505565600143. The next prime is 16505565600187. The reversal of 16505565600166 is 66100656550561.

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

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, 18938275 + ... + 19790638.

It is an arithmetic number, because the mean of its divisors is an integer number (3094808153283).

Almost surely, 2^{16505565600166} is an apocalyptic number.

16505565600166 is a deficient number, since it is larger than the sum of its proper divisors (8252899626098).

16505565600166 is a wasteful number, since it uses less digits than its factorization.

16505565600166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38942006.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 16505565600166 in words is "sixteen trillion, five hundred five billion, five hundred sixty-five million, six hundred thousand, one hundred sixty-six".