171441214644 has 144 divisors (see below), whose sum is σ = 486234046592. Its totient is φ = 46046527488.

The previous prime is 171441214639. The next prime is 171441214673. The reversal of 171441214644 is 446412144171.

It is a super-2 number, since 2×171441214644² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22742844 + ... + 22750380.

Almost surely, 2^171441214644 is an apocalyptic number.

171441214644 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 171441214644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243117023296).

171441214644 is an abundant number, since it is smaller than the sum of its proper divisors (314792831948).

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

171441214644 is a wasteful number, since it uses less digits than its factorization.

171441214644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8522 (or 8503 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The spelling of 171441214644 in words is "one hundred seventy-one billion, four hundred forty-one million, two hundred fourteen thousand, six hundred forty-four".