164326505 has 64 divisors (see below), whose sum is σ = 252149760. Its totient is φ = 100224000.

The previous prime is 164326493. The next prime is 164326511. The reversal of 164326505 is 505623461.

It is not a de Polignac number, because 164326505 - 2¹⁰ = 164325481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1088180 + ... + 1088330.

It is an arithmetic number, because the mean of its divisors is an integer number (3939840).

Almost surely, 2^164326505 is an apocalyptic number.

It is an amenable number.

164326505 is a deficient number, since it is larger than the sum of its proper divisors (87823255).

164326505 is a wasteful number, since it uses less digits than its factorization.

164326505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 164326505 is about 12818.9900148179. The cubic root of 164326505 is about 547.7333770119.

Adding to 164326505 its reverse (505623461), we get a palindrome (669949966).

The spelling of 164326505 in words is "one hundred sixty-four million, three hundred twenty-six thousand, five hundred five".