164771669 has 8 divisors (see below), whose sum is σ = 167754048. Its totient is φ = 161815680.

The previous prime is 164771639. The next prime is 164771671. The reversal of 164771669 is 966177461.

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

It is a cyclic number.

It is not a de Polignac number, because 164771669 - 2²⁰ = 163723093 is a prime.

It is a super-2 number, since 2×164771669² = 54299405810091122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164771639) 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, 6224 + ... + 19190.

It is an arithmetic number, because the mean of its divisors is an integer number (20969256).

Almost surely, 2^164771669 is an apocalyptic number.

It is an amenable number.

164771669 is a deficient number, since it is larger than the sum of its proper divisors (2982379).

164771669 is a wasteful number, since it uses less digits than its factorization.

164771669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13195.

The product of its digits is 381024, while the sum is 47.

The square root of 164771669 is about 12836.3417296362. The cubic root of 164771669 is about 548.2275381751.

The spelling of 164771669 in words is "one hundred sixty-four million, seven hundred seventy-one thousand, six hundred sixty-nine".