164311556323 has 4 divisors (see below), whose sum is σ = 164393264728. Its totient is φ = 164229847920.

The previous prime is 164311556309. The next prime is 164311556351. The reversal of 164311556323 is 323655113461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323655113461 = 31 ⋅10440487531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164311556323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164311556623) 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, 40851186 + ... + 40855207.

It is an arithmetic number, because the mean of its divisors is an integer number (41098316182).

Almost surely, 2^164311556323 is an apocalyptic number.

164311556323 is a deficient number, since it is larger than the sum of its proper divisors (81708405).

164311556323 is an equidigital number, since it uses as much as digits as its factorization.

164311556323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81708404.

The product of its digits is 194400, while the sum is 40.

Adding to 164311556323 its reverse (323655113461), we get a palindrome (487966669784).

The spelling of 164311556323 in words is "one hundred sixty-four billion, three hundred eleven million, five hundred fifty-six thousand, three hundred twenty-three".