164459669 has 8 divisors (see below), whose sum is σ = 179558208. Its totient is φ = 149385760.

The previous prime is 164459663. The next prime is 164459693. The reversal of 164459669 is 966954461.

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

It is not a de Polignac number, because 164459669 - 2²⁰ = 163411093 is a prime.

It is a super-2 number, since 2×164459669² = 54093965455179122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164459663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9569 + ... + 20505.

It is an arithmetic number, because the mean of its divisors is an integer number (22444776).

Almost surely, 2^164459669 is an apocalyptic number.

It is an amenable number.

164459669 is a deficient number, since it is larger than the sum of its proper divisors (15098539).

164459669 is a wasteful number, since it uses less digits than its factorization.

164459669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12315.

The product of its digits is 1399680, while the sum is 50.

The square root of 164459669 is about 12824.1829759248. The cubic root of 164459669 is about 547.8812912191.

The spelling of 164459669 in words is "one hundred sixty-four million, four hundred fifty-nine thousand, six hundred sixty-nine".