171316560 has 80 divisors (see below), whose sum is σ = 535233600. Its totient is φ = 45327360.

The previous prime is 171316547. The next prime is 171316567. The reversal of 171316560 is 65613171.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171316567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28716 + ... + 34164.

It is an arithmetic number, because the mean of its divisors is an integer number (6690420).

Almost surely, 2^171316560 is an apocalyptic number.

171316560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171316560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267616800).

171316560 is an abundant number, since it is smaller than the sum of its proper divisors (363917040).

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

171316560 is a wasteful number, since it uses less digits than its factorization.

171316560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596 (or 5590 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 171316560 is about 13088.7952081160. The cubic root of 171316560 is about 555.3922071462.

The spelling of 171316560 in words is "one hundred seventy-one million, three hundred sixteen thousand, five hundred sixty".