172329980656960 has 224 divisors, whose sum is σ = 473685672245760. Its totient is φ = 58492554928128.

The previous prime is 172329980656931. The next prime is 172329980656963. The reversal of 172329980656960 is 69656089923271.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172329980656963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 744879222 + ... + 745110538.

Almost surely, 2^{172329980656960} is an apocalyptic number.

172329980656960 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 172329980656960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236842836122880).

172329980656960 is an abundant number, since it is smaller than the sum of its proper divisors (301355691588800).

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

172329980656960 is a wasteful number, since it uses less digits than its factorization.

172329980656960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234673 (or 234663 counting only the distinct ones).

The product of its (nonzero) digits is 529079040, while the sum is 73.

The spelling of 172329980656960 in words is "one hundred seventy-two trillion, three hundred twenty-nine billion, nine hundred eighty million, six hundred fifty-six thousand, nine hundred sixty".