164816365 has 16 divisors (see below), whose sum is σ = 226332288. Its totient is φ = 112867776.

The previous prime is 164816363. The next prime is 164816371. The reversal of 164816365 is 563618461.

It is not a de Polignac number, because 164816365 - 2¹ = 164816363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164816363) 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 15 ways as a sum of consecutive naturals, for example, 28239 + ... + 33571.

It is an arithmetic number, because the mean of its divisors is an integer number (14145768).

Almost surely, 2^164816365 is an apocalyptic number.

It is an amenable number.

164816365 is a deficient number, since it is larger than the sum of its proper divisors (61515923).

164816365 is an equidigital number, since it uses as much as digits as its factorization.

164816365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228.

The product of its digits is 103680, while the sum is 40.

The square root of 164816365 is about 12838.0826060592. The cubic root of 164816365 is about 548.2771044687.

The spelling of 164816365 in words is "one hundred sixty-four million, eight hundred sixteen thousand, three hundred sixty-five".