164573483213 has 4 divisors (see below), whose sum is σ = 170248430940. Its totient is φ = 158898535488.

The previous prime is 164573483203. The next prime is 164573483323. The reversal of 164573483213 is 312384375461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312384375461 = 19 ⋅16441282919.

It can be written as a sum of positive squares in 2 ways, for example, as 46899099844 + 117674383369 = 216562^2 + 343037^2 .

It is a cyclic number.

It is not a de Polignac number, because 164573483213 - 2²⁸ = 164305047757 is a prime.

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 (164573483203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2837473820 + ... + 2837473877.

It is an arithmetic number, because the mean of its divisors is an integer number (42562107735).

Almost surely, 2^164573483213 is an apocalyptic number.

It is an amenable number.

164573483213 is a deficient number, since it is larger than the sum of its proper divisors (5674947727).

164573483213 is an equidigital number, since it uses as much as digits as its factorization.

164573483213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5674947726.

The product of its digits is 1451520, while the sum is 47.

The spelling of 164573483213 in words is "one hundred sixty-four billion, five hundred seventy-three million, four hundred eighty-three thousand, two hundred thirteen".