164364775 has 12 divisors (see below), whose sum is σ = 204174432. Its totient is φ = 131258240.

The previous prime is 164364719. The next prime is 164364803. The reversal of 164364775 is 577463461.

It is not a de Polignac number, because 164364775 - 2¹³ = 164356583 is a prime.

It is a Duffinian number.

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 in 11 ways as a sum of consecutive naturals, for example, 9282 + ... + 20368.

It is an arithmetic number, because the mean of its divisors is an integer number (17014536).

Almost surely, 2^164364775 is an apocalyptic number.

164364775 is a deficient number, since it is larger than the sum of its proper divisors (39809657).

164364775 is a wasteful number, since it uses less digits than its factorization.

164364775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690 (or 11685 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The square root of 164364775 is about 12820.4826352209. The cubic root of 164364775 is about 547.7758942538.

The spelling of 164364775 in words is "one hundred sixty-four million, three hundred sixty-four thousand, seven hundred seventy-five".