164545564 has 12 divisors (see below), whose sum is σ = 290806488. Its totient is φ = 81458000.

The previous prime is 164545561. The next prime is 164545573. The reversal of 164545564 is 465545461.

It is a super-3 number, since 3×164545564³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164545561) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 203242 + ... + 204049.

It is an arithmetic number, because the mean of its divisors is an integer number (24233874).

Almost surely, 2^164545564 is an apocalyptic number.

It is an amenable number.

164545564 is a deficient number, since it is larger than the sum of its proper divisors (126260924).

164545564 is a wasteful number, since it uses less digits than its factorization.

164545564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407396 (or 407394 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 164545564 is about 12827.5314850520. The cubic root of 164545564 is about 547.9766582133.

The spelling of 164545564 in words is "one hundred sixty-four million, five hundred forty-five thousand, five hundred sixty-four".