164271204173 has 8 divisors (see below), whose sum is σ = 164681182200. Its totient is φ = 163861447680.

The previous prime is 164271204151. The next prime is 164271204179. The reversal of 164271204173 is 371402172461.

It can be written as a sum of positive squares in 4 ways, for example, as 76606061284 + 87665142889 = 276778^2 + 296083^2 .

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 164271204173 - 2⁶ = 164271204109 is a prime.

It is a super-2 number, since 2×164271204173² (a number of 23 digits) 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 (164271204179) 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, 1482503 + ... + 1589451.

It is an arithmetic number, because the mean of its divisors is an integer number (20585147775).

Almost surely, 2^164271204173 is an apocalyptic number.

It is an amenable number.

164271204173 is a deficient number, since it is larger than the sum of its proper divisors (409978027).

164271204173 is a wasteful number, since it uses less digits than its factorization.

164271204173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110767.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 164271204173 in words is "one hundred sixty-four billion, two hundred seventy-one million, two hundred four thousand, one hundred seventy-three".