165663046022166 has 48 divisors (see below), whose sum is σ = 447505371076608. Its totient is φ = 43029362602800.

The previous prime is 165663046022143. The next prime is 165663046022167. The reversal of 165663046022166 is 661220640366561.

165663046022166 is a `hidden beast` number, since 1 + 6 + 5 + 6 + 6 + 3 + 0 + 4 + 602 + 21 + 6 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165663046022167) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 59763002230 + ... + 59763005001.

It is an arithmetic number, because the mean of its divisors is an integer number (9323028564096).

Almost surely, 2^{165663046022166} is an apocalyptic number.

165663046022166 is an abundant number, since it is smaller than the sum of its proper divisors (281842325054442).

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

165663046022166 is a wasteful number, since it uses less digits than its factorization.

165663046022166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119526007257 (or 119526007254 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 165663046022166 in words is "one hundred sixty-five trillion, six hundred sixty-three billion, forty-six million, twenty-two thousand, one hundred sixty-six".