172885746160 has 80 divisors (see below), whose sum is σ = 412761831552. Its totient is φ = 67319193600.

The previous prime is 172885746149. The next prime is 172885746169. The reversal of 172885746160 is 61647588271.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172885746169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290745 + ... + 655975.

Almost surely, 2^172885746160 is an apocalyptic number.

172885746160 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 172885746160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206380915776).

172885746160 is an abundant number, since it is smaller than the sum of its proper divisors (239876085392).

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

172885746160 is a wasteful number, since it uses less digits than its factorization.

172885746160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365402 (or 365396 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 172885746160 in words is "one hundred seventy-two billion, eight hundred eighty-five million, seven hundred forty-six thousand, one hundred sixty".