171045664 has 48 divisors (see below), whose sum is σ = 352997568. Its totient is φ = 81430272.

The previous prime is 171045659. The next prime is 171045689. The reversal of 171045664 is 466540171.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225574 + ... + 226330.

It is an arithmetic number, because the mean of its divisors is an integer number (7354116).

Almost surely, 2^171045664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171045664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176498784).

171045664 is an abundant number, since it is smaller than the sum of its proper divisors (181951904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171045664 is a wasteful number, since it uses less digits than its factorization.

171045664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 171045664 is about 13078.4427207523. The cubic root of 171045664 is about 555.0993129097.

It can be divided in two parts, 1710 and 45664, that added together give a palindrome (47374).

The spelling of 171045664 in words is "one hundred seventy-one million, forty-five thousand, six hundred sixty-four".