164066709605 has 16 divisors (see below), whose sum is σ = 203721851520. Its totient is φ = 126694516032.

The previous prime is 164066709581. The next prime is 164066709613. The reversal of 164066709605 is 506907660461.

It is a cyclic number.

It is not a de Polignac number, because 164066709605 - 2¹⁰ = 164066708581 is a prime.

It is a super-2 number, since 2×164066709605² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421712 + ... + 711318.

It is an arithmetic number, because the mean of its divisors is an integer number (12732615720).

Almost surely, 2^164066709605 is an apocalyptic number.

It is an amenable number.

164066709605 is a deficient number, since it is larger than the sum of its proper divisors (39655141915).

164066709605 is a wasteful number, since it uses less digits than its factorization.

164066709605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293548.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 164066709605 in words is "one hundred sixty-four billion, sixty-six million, seven hundred nine thousand, six hundred five".