164105611 has 4 divisors (see below), whose sum is σ = 164225824. Its totient is φ = 163985400.

The previous prime is 164105597. The next prime is 164105633. The reversal of 164105611 is 116501461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116501461 = 149 ⋅781889.

It is a cyclic number.

It is not a de Polignac number, because 164105611 - 2¹⁹ = 163581323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164105651) 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, 58035 + ... + 60796.

It is an arithmetic number, because the mean of its divisors is an integer number (41056456).

Almost surely, 2^164105611 is an apocalyptic number.

164105611 is a deficient number, since it is larger than the sum of its proper divisors (120213).

164105611 is a wasteful number, since it uses less digits than its factorization.

164105611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120212.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 164105611 is about 12810.3712280324. The cubic root of 164105611 is about 547.4878388770.

The spelling of 164105611 in words is "one hundred sixty-four million, one hundred five thousand, six hundred eleven".