172339597320 has 128 divisors (see below), whose sum is σ = 566166205440. Its totient is φ = 41620355840.

The previous prime is 172339597303. The next prime is 172339597363. The reversal of 172339597320 is 23795933271.

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 31 ways as a sum of consecutive naturals, for example, 98947 + ... + 595373.

It is an arithmetic number, because the mean of its divisors is an integer number (4423173480).

Almost surely, 2^172339597320 is an apocalyptic number.

172339597320 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 172339597320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283083102720).

172339597320 is an abundant number, since it is smaller than the sum of its proper divisors (393826608120).

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

172339597320 is a wasteful number, since it uses less digits than its factorization.

172339597320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496715 (or 496711 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 51.

The spelling of 172339597320 in words is "one hundred seventy-two billion, three hundred thirty-nine million, five hundred ninety-seven thousand, three hundred twenty".