171082956044 has 96 divisors (see below), whose sum is σ = 402190118400. Its totient is φ = 61496962560.

The previous prime is 171082956043. The next prime is 171082956047. The reversal of 171082956044 is 440659280171.

It is a happy number.

It is a super-2 number, since 2×171082956044² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 171082956044.

It is not an unprimeable number, because it can be changed into a prime (171082956041) 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, 8714912 + ... + 8734520.

It is an arithmetic number, because the mean of its divisors is an integer number (4189480400).

Almost surely, 2^171082956044 is an apocalyptic number.

171082956044 is a gapful number since it is divisible by the number (14) 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 171082956044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201095059200).

171082956044 is an abundant number, since it is smaller than the sum of its proper divisors (231107162356).

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

171082956044 is a wasteful number, since it uses less digits than its factorization.

171082956044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21823 (or 21821 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 171082956044 in words is "one hundred seventy-one billion, eighty-two million, nine hundred fifty-six thousand, forty-four".