164143212311 has 4 divisors (see below), whose sum is σ = 176769613272. Its totient is φ = 151516811352.

The previous prime is 164143212307. The next prime is 164143212319. The reversal of 164143212311 is 113212341461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164143212311 - 2² = 164143212307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164143212319) 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, 6313200461 + ... + 6313200486.

It is an arithmetic number, because the mean of its divisors is an integer number (44192403318).

Almost surely, 2^164143212311 is an apocalyptic number.

164143212311 is a deficient number, since it is larger than the sum of its proper divisors (12626400961).

164143212311 is a wasteful number, since it uses less digits than its factorization.

164143212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12626400960.

The product of its digits is 3456, while the sum is 29.

Adding to 164143212311 its reverse (113212341461), we get a palindrome (277355553772).

The spelling of 164143212311 in words is "one hundred sixty-four billion, one hundred forty-three million, two hundred twelve thousand, three hundred eleven".