171243961344 has 132 divisors (see below), whose sum is σ = 506524418400. Its totient is φ = 55688970240.

The previous prime is 171243961289. The next prime is 171243961351. The reversal of 171243961344 is 443169342171.

It is a happy number.

171243961344 is a `hidden beast` number, since 1 + 7 + 1 + 24 + 3 + 9 + 613 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 171243961344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151257 + ... + 604455.

It is an arithmetic number, because the mean of its divisors is an integer number (3837306200).

Almost surely, 2^171243961344 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 171243961344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253262209200).

171243961344 is an abundant number, since it is smaller than the sum of its proper divisors (335280457056).

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

171243961344 is a wasteful number, since it uses less digits than its factorization.

171243961344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453266 (or 453245 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 171243961344 in words is "one hundred seventy-one billion, two hundred forty-three million, nine hundred sixty-one thousand, three hundred forty-four".