164411111 has 12 divisors (see below), whose sum is σ = 169798032. Its totient is φ = 159164064.

The previous prime is 164411101. The next prime is 164411113. The reversal of 164411111 is 111114461.

It is not a de Polignac number, because 164411111 - 2¹⁰ = 164410087 is a prime.

It is a super-3 number, since 3×164411111³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

164411111 is a modest number, since divided by 11111 gives 1644 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164411113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253790 + ... + 254436.

It is an arithmetic number, because the mean of its divisors is an integer number (14149836).

Almost surely, 2^164411111 is an apocalyptic number.

164411111 is a deficient number, since it is larger than the sum of its proper divisors (5386921).

164411111 is an frugal number, since it uses more digits than its factorization.

164411111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 779 counting only the distinct ones).

The product of its digits is 96, while the sum is 20.

The square root of 164411111 is about 12822.2896161333. The cubic root of 164411111 is about 547.8273638364.

Adding to 164411111 its reverse (111114461), we get a palindrome (275525572).

The spelling of 164411111 in words is "one hundred sixty-four million, four hundred eleven thousand, one hundred eleven".