172154752112 has 60 divisors (see below), whose sum is σ = 388611517896. Its totient is φ = 73665648000.

The previous prime is 172154752109. The next prime is 172154752117. The reversal of 172154752112 is 211257451271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172154752117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333362 + ... + 674862.

Almost surely, 2^172154752112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172154752112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194305758948).

172154752112 is an abundant number, since it is smaller than the sum of its proper divisors (216456765784).

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

172154752112 is a wasteful number, since it uses less digits than its factorization.

172154752112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342166 (or 342153 counting only the distinct ones).

The product of its digits is 39200, while the sum is 38.

The spelling of 172154752112 in words is "one hundred seventy-two billion, one hundred fifty-four million, seven hundred fifty-two thousand, one hundred twelve".