171966464 has 46 divisors (see below), whose sum is σ = 352321494. Its totient is φ = 83886080.

The previous prime is 171966439. The next prime is 171966481. The reversal of 171966464 is 464669171.

It can be written as a sum of positive squares in only one way, i.e., 104857600 + 67108864 = 10240^2 + 8192^2 .

It is a nialpdrome in base 4 and base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4194284 + ... + 4194324.

Almost surely, 2^171966464 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 171966464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176160747).

171966464 is an abundant number, since it is smaller than the sum of its proper divisors (180355030).

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

171966464 is an frugal number, since it uses more digits than its factorization.

171966464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 43 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 171966464 is about 13113.5984382625. The cubic root of 171966464 is about 556.0936301784.

The spelling of 171966464 in words is "one hundred seventy-one million, nine hundred sixty-six thousand, four hundred sixty-four".