172000080 has 120 divisors (see below), whose sum is σ = 660172032. Its totient is φ = 39313152.

The previous prime is 172000069. The next prime is 172000093. The reversal of 172000080 is 80000271.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12024 + ... + 22103.

Almost surely, 2^172000080 is an apocalyptic number.

172000080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172000080 is an abundant number, since it is smaller than the sum of its proper divisors (488171952).

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

172000080 is a wasteful number, since it uses less digits than its factorization.

172000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34153 (or 34144 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 172000080 is about 13114.8800985751. The cubic root of 172000080 is about 556.1298628738.

The spelling of 172000080 in words is "one hundred seventy-two million, eighty", and thus it is an aban number.