16606653165 has 48 divisors (see below), whose sum is σ = 29376861696. Its totient is φ = 8676201600.

The previous prime is 16606653157. The next prime is 16606653199. The reversal of 16606653165 is 56135660661.

16606653165 is a `hidden beast` number, since 1 + 6 + 606 + 6 + 5 + 31 + 6 + 5 = 666.

It is not a de Polignac number, because 16606653165 - 2³ = 16606653157 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16606653165.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 530500 + ... + 560930.

It is an arithmetic number, because the mean of its divisors is an integer number (612017952).

Almost surely, 2^16606653165 is an apocalyptic number.

16606653165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16606653165 is a deficient number, since it is larger than the sum of its proper divisors (12770208531).

16606653165 is a wasteful number, since it uses less digits than its factorization.

16606653165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30690 (or 30687 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 16606653165 in words is "sixteen billion, six hundred six million, six hundred fifty-three thousand, one hundred sixty-five".