165550632166 has 8 divisors (see below), whose sum is σ = 248336650080. Its totient is φ = 82771748808.

The previous prime is 165550632161. The next prime is 165550632187. The reversal of 165550632166 is 661236055561.

165550632166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165550632161) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1725246 + ... + 1818673.

It is an arithmetic number, because the mean of its divisors is an integer number (31042081260).

Almost surely, 2^165550632166 is an apocalyptic number.

165550632166 is a deficient number, since it is larger than the sum of its proper divisors (82786017914).

165550632166 is a wasteful number, since it uses less digits than its factorization.

165550632166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567278.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 165550632166 in words is "one hundred sixty-five billion, five hundred fifty million, six hundred thirty-two thousand, one hundred sixty-six".