171916672 has 32 divisors (see below), whose sum is σ = 346361400. Its totient is φ = 84986880.

The previous prime is 171916663. The next prime is 171916673. The reversal of 171916672 is 276619171.

171916672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×171916672² = 59110684223111168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171916673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3847 + ... + 18937.

Almost surely, 2^171916672 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 171916672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173180700).

171916672 is an abundant number, since it is smaller than the sum of its proper divisors (174444728).

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

171916672 is an equidigital number, since it uses as much as digits as its factorization.

171916672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15194 (or 15182 counting only the distinct ones).

The product of its digits is 31752, while the sum is 40.

The square root of 171916672 is about 13111.6998135253. The cubic root of 171916672 is about 556.0399536529.

The spelling of 171916672 in words is "one hundred seventy-one million, nine hundred sixteen thousand, six hundred seventy-two".