172445232960 has 1792 divisors, whose sum is σ = 828478586880. Its totient is φ = 32606945280.

The previous prime is 172445232901. The next prime is 172445232991. The reversal of 172445232960 is 69232544271.

172445232960 is a `hidden beast` number, since 1 + 7 + 2 + 44 + 523 + 29 + 60 = 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 polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1098377202 + ... + 1098377358.

It is an arithmetic number, because the mean of its divisors is an integer number (462320640).

Almost surely, 2^172445232960 is an apocalyptic number.

172445232960 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 172445232960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414239293440).

172445232960 is an abundant number, since it is smaller than the sum of its proper divisors (656033353920).

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

172445232960 is a wasteful number, since it uses less digits than its factorization.

172445232960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 172445232960 in words is "one hundred seventy-two billion, four hundred forty-five million, two hundred thirty-two thousand, nine hundred sixty".