172256325152 has 18 divisors (see below), whose sum is σ = 339134262453. Its totient is φ = 86126988672.

The previous prime is 172256325089. The next prime is 172256325191. The reversal of 172256325152 is 251523652271.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 92418432016 + 79837893136 = 304004^2 + 282556^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=293476.

It is a super-3 number, since 3×172256325152³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2311124 + ... + 2384492.

Almost surely, 2^172256325152 is an apocalyptic number.

It is an amenable number.

172256325152 is a deficient number, since it is larger than the sum of its proper divisors (166877937301).

172256325152 is an frugal number, since it uses more digits than its factorization.

172256325152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146748 (or 73371 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The spelling of 172256325152 in words is "one hundred seventy-two billion, two hundred fifty-six million, three hundred twenty-five thousand, one hundred fifty-two".