164411911 has 4 divisors (see below), whose sum is σ = 164439112. Its totient is φ = 164384712.

The previous prime is 164411873. The next prime is 164411977. The reversal of 164411911 is 119114461.

164411911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

164411911 is a nontrivial binomial coefficient, being equal to C(18134, 2).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119114461 = 17 ⋅7006733.

It is a 3-Lehmer number, since φ(164411911) divides (164411911-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164411911 is a prime.

It is a super-3 number, since 3×164411911³ (a number of 26 digits) contains 333 as substring.

It is a deceptive number, since it divides R_164411910.

It is a self number, because there is not a number n which added to its sum of digits gives 164411911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164411711) 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, 1 + ... + 18133.

It is an arithmetic number, because the mean of its divisors is an integer number (41109778).

Almost surely, 2^164411911 is an apocalyptic number.

164411911 is the 18133-rd triangular number and also the 9067-th hexagonal number.

164411911 is the 6045-th centered nonagonal number.

164411911 is a deficient number, since it is larger than the sum of its proper divisors (27201).

164411911 is an equidigital number, since it uses as much as digits as its factorization.

164411911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27200.

The product of its digits is 864, while the sum is 28.

The square root of 164411911 is about 12822.3208117719. The cubic root of 164411911 is about 547.8282523838.

The spelling of 164411911 in words is "one hundred sixty-four million, four hundred eleven thousand, nine hundred eleven".