165664334 has 32 divisors (see below), whose sum is σ = 277191936. Its totient is φ = 73624320.

The previous prime is 165664319. The next prime is 165664357. The reversal of 165664334 is 433466561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245822 + ... + 246494.

It is an arithmetic number, because the mean of its divisors is an integer number (8662248).

Almost surely, 2^165664334 is an apocalyptic number.

165664334 is a deficient number, since it is larger than the sum of its proper divisors (111527602).

165664334 is a wasteful number, since it uses less digits than its factorization.

165664334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920.

The product of its digits is 155520, while the sum is 38.

The square root of 165664334 is about 12871.0657678376. The cubic root of 165664334 is about 549.2157793156.

The spelling of 165664334 in words is "one hundred sixty-five million, six hundred sixty-four thousand, three hundred thirty-four".