171230111744 has 48 divisors (see below), whose sum is σ = 342822703860. Its totient is φ = 85503508480.

The previous prime is 171230111713. The next prime is 171230111761. The reversal of 171230111744 is 447111032171.

It can be written as a sum of positive squares in 2 ways, for example, as 168848671744 + 2381440000 = 410912^2 + 48800^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 171230111744.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529024 + ... + 1637184.

Almost surely, 2^171230111744 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 171230111744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171411351930).

171230111744 is an abundant number, since it is smaller than the sum of its proper divisors (171592592116).

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

171230111744 is an equidigital number, since it uses as much as digits as its factorization.

171230111744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108956 (or 108936 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The spelling of 171230111744 in words is "one hundred seventy-one billion, two hundred thirty million, one hundred eleven thousand, seven hundred forty-four".