165306516606 has 64 divisors (see below), whose sum is σ = 457992092160. Its totient is φ = 42936756480.

The previous prime is 165306516539. The next prime is 165306516629. The reversal of 165306516606 is 606615603561.

165306516606 is a `hidden beast` number, since 1 + 6 + 5 + 30 + 6 + 5 + 1 + 6 + 606 = 666.

165306516606 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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19873971 + ... + 19882286.

It is an arithmetic number, because the mean of its divisors is an integer number (7156126440).

Almost surely, 2^165306516606 is an apocalyptic number.

165306516606 is an abundant number, since it is smaller than the sum of its proper divisors (292685575554).

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

165306516606 is a wasteful number, since it uses less digits than its factorization.

165306516606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39756286 (or 39756280 counting only the distinct ones).

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

It can be divided in two parts, 16530 and 6516606, that added together give a square (6533136 = 2556²).

The spelling of 165306516606 in words is "one hundred sixty-five billion, three hundred six million, five hundred sixteen thousand, six hundred six".