164166164 has 6 divisors (see below), whose sum is σ = 287290794. Its totient is φ = 82083080.

The previous prime is 164166113. The next prime is 164166179. The reversal of 164166164 is 461661461.

It can be written as a sum of positive squares in only one way, i.e., 157301764 + 6864400 = 12542^2 + 2620^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20520767 + ... + 20520774.

It is an arithmetic number, because the mean of its divisors is an integer number (47881799).

Almost surely, 2^164166164 is an apocalyptic number.

It is an amenable number.

164166164 is a deficient number, since it is larger than the sum of its proper divisors (123124630).

164166164 is a wasteful number, since it uses less digits than its factorization.

164166164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41041545 (or 41041543 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 164166164 is about 12812.7344466355. The cubic root of 164166164 is about 547.5551694092. Note that the first 3 decimals are identical.

The spelling of 164166164 in words is "one hundred sixty-four million, one hundred sixty-six thousand, one hundred sixty-four".