164260065 has 32 divisors (see below), whose sum is σ = 270360576. Its totient is φ = 85118400.

The previous prime is 164260051. The next prime is 164260099. The reversal of 164260065 is 560062461.

It is not a de Polignac number, because 164260065 - 2⁹ = 164259553 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105684 + ... + 107226.

It is an arithmetic number, because the mean of its divisors is an integer number (8448768).

Almost surely, 2^164260065 is an apocalyptic number.

164260065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164260065 is a deficient number, since it is larger than the sum of its proper divisors (106100511).

164260065 is a wasteful number, since it uses less digits than its factorization.

164260065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 164260065 is about 12816.3982850097. The cubic root of 164260065 is about 547.6595477551.

The spelling of 164260065 in words is "one hundred sixty-four million, two hundred sixty thousand, sixty-five".