164345440243311 has 24 divisors (see below), whose sum is σ = 239258339174400. Its totient is φ = 108700337155536.

The previous prime is 164345440243261. The next prime is 164345440243351. The reversal of 164345440243311 is 113342044543461.

164345440243311 is a `hidden beast` number, since 1 + 6 + 4 + 3 + 4 + 54 + 40 + 243 + 311 = 666.

It is not a de Polignac number, because 164345440243311 - 2⁹ = 164345440242799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164345440243351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357413796 + ... + 357873318.

It is an arithmetic number, because the mean of its divisors is an integer number (9969097465600).

Almost surely, 2^{164345440243311} is an apocalyptic number.

164345440243311 is a deficient number, since it is larger than the sum of its proper divisors (74912898931089).

164345440243311 is a wasteful number, since it uses less digits than its factorization.

164345440243311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772555 (or 772552 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

Adding to 164345440243311 its reverse (113342044543461), we get a palindrome (277687484786772).

The spelling of 164345440243311 in words is "one hundred sixty-four trillion, three hundred forty-five billion, four hundred forty million, two hundred forty-three thousand, three hundred eleven".