164266464565 has 16 divisors (see below), whose sum is σ = 227346514560. Its totient is φ = 111606465600.

The previous prime is 164266464529. The next prime is 164266464569. The reversal of 164266464565 is 565464662461.

It is not a de Polignac number, because 164266464565 - 2⁹ = 164266464053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164266464569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21525211 + ... + 21532840.

It is an arithmetic number, because the mean of its divisors is an integer number (14209157160).

Almost surely, 2^164266464565 is an apocalyptic number.

It is an amenable number.

164266464565 is a deficient number, since it is larger than the sum of its proper divisors (63080049995).

164266464565 is a wasteful number, since it uses less digits than its factorization.

164266464565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43058172.

The product of its digits is 24883200, while the sum is 55.

The spelling of 164266464565 in words is "one hundred sixty-four billion, two hundred sixty-six million, four hundred sixty-four thousand, five hundred sixty-five".