171560471543320 has 128 divisors (see below), whose sum is σ = 420410515032000. Its totient is φ = 62759861821440.

The previous prime is 171560471543287. The next prime is 171560471543323. The reversal of 171560471543320 is 23345174065171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171560471543323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128955444 + ... + 130279036.

Almost surely, 2^{171560471543320} is an apocalyptic number.

171560471543320 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 171560471543320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210205257516000).

171560471543320 is an abundant number, since it is smaller than the sum of its proper divisors (248850043488680).

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

171560471543320 is a wasteful number, since it uses less digits than its factorization.

171560471543320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329533 (or 1329529 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 171560471543320 in words is "one hundred seventy-one trillion, five hundred sixty billion, four hundred seventy-one million, five hundred forty-three thousand, three hundred twenty".