172971333360 has 400 divisors, whose sum is σ = 695995709376. Its totient is φ = 38993965056.

The previous prime is 172971333343. The next prime is 172971333397. The reversal of 172971333360 is 63333179271.

172971333360 is a `hidden beast` number, since 1 + 72 + 97 + 133 + 3 + 360 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3285162 + ... + 3337398.

Almost surely, 2^172971333360 is an apocalyptic number.

172971333360 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 172971333360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347997854688).

172971333360 is an abundant number, since it is smaller than the sum of its proper divisors (523024376016).

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

172971333360 is a wasteful number, since it uses less digits than its factorization.

172971333360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52342 (or 52327 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 45.

The spelling of 172971333360 in words is "one hundred seventy-two billion, nine hundred seventy-one million, three hundred thirty-three thousand, three hundred sixty".