172622915680 has 96 divisors (see below), whose sum is σ = 425677291200. Its totient is φ = 66027743232.

The previous prime is 172622915603. The next prime is 172622915701. The reversal of 172622915680 is 86519226271.

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, 25127286 + ... + 25134154.

It is an arithmetic number, because the mean of its divisors is an integer number (4434138450).

Almost surely, 2^172622915680 is an apocalyptic number.

172622915680 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 172622915680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212838645600).

172622915680 is an abundant number, since it is smaller than the sum of its proper divisors (253054375520).

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

172622915680 is a wasteful number, since it uses less digits than its factorization.

172622915680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13736 (or 13728 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 172622915680 in words is "one hundred seventy-two billion, six hundred twenty-two million, nine hundred fifteen thousand, six hundred eighty".