171613832020 has 96 divisors (see below), whose sum is σ = 371808299520. Its totient is φ = 66496035840.

The previous prime is 171613832009. The next prime is 171613832021. The reversal of 171613832020 is 20238316171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171613832021) 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, 83185509 + ... + 83187571.

It is an arithmetic number, because the mean of its divisors is an integer number (3873003120).

Almost surely, 2^171613832020 is an apocalyptic number.

171613832020 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 171613832020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185904149760).

171613832020 is an abundant number, since it is smaller than the sum of its proper divisors (200194467500).

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

171613832020 is a wasteful number, since it uses less digits than its factorization.

171613832020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 171613832020 in words is "one hundred seventy-one billion, six hundred thirteen million, eight hundred thirty-two thousand, twenty".