164105065 has 4 divisors (see below), whose sum is σ = 196926084. Its totient is φ = 131284048.

The previous prime is 164105047. The next prime is 164105107. The reversal of 164105065 is 560501461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29289744 + 134815321 = 5412^2 + 11611^2 .

It is a cyclic number.

It is not a de Polignac number, because 164105065 - 2¹³ = 164096873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16410502 + ... + 16410511.

It is an arithmetic number, because the mean of its divisors is an integer number (49231521).

Almost surely, 2^164105065 is an apocalyptic number.

It is an amenable number.

164105065 is a deficient number, since it is larger than the sum of its proper divisors (32821019).

164105065 is an equidigital number, since it uses as much as digits as its factorization.

164105065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32821018.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 164105065 is about 12810.3499171568. The cubic root of 164105065 is about 547.4872316893.

The spelling of 164105065 in words is "one hundred sixty-four million, one hundred five thousand, sixty-five".