172162560 has 160 divisors (see below), whose sum is σ = 570097440. Its totient is φ = 44269568.

The previous prime is 172162559. The next prime is 172162577. The reversal of 172162560 is 65261271.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222334 + ... + 223106.

It is an arithmetic number, because the mean of its divisors is an integer number (3563109).

Almost surely, 2^172162560 is an apocalyptic number.

172162560 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 172162560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285048720).

172162560 is an abundant number, since it is smaller than the sum of its proper divisors (397934880).

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

172162560 is an equidigital number, since it uses as much as digits as its factorization.

172162560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 172162560 is about 13121.0731268445. The cubic root of 172162560 is about 556.3049239206.

The spelling of 172162560 in words is "one hundred seventy-two million, one hundred sixty-two thousand, five hundred sixty".