164755645 has 8 divisors (see below), whose sum is σ = 198743040. Its totient is φ = 131113680.

The previous prime is 164755621. The next prime is 164755649. The reversal of 164755645 is 546557461.

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

It is not a de Polignac number, because 164755645 - 2²⁷ = 30537917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164755649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85305 + ... + 87214.

It is an arithmetic number, because the mean of its divisors is an integer number (24842880).

Almost surely, 2^164755645 is an apocalyptic number.

It is an amenable number.

164755645 is a deficient number, since it is larger than the sum of its proper divisors (33987395).

164755645 is a wasteful number, since it uses less digits than its factorization.

164755645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172715.

The product of its digits is 504000, while the sum is 43.

The square root of 164755645 is about 12835.7175490893. The cubic root of 164755645 is about 548.2097659393.

The spelling of 164755645 in words is "one hundred sixty-four million, seven hundred fifty-five thousand, six hundred forty-five".