179172122245144 has 128 divisors (see below), whose sum is σ = 414535034880000. Its totient is φ = 70901853732864.

The previous prime is 179172122245117. The next prime is 179172122245183. The reversal of 179172122245144 is 441542221271971.

It is a super-2 number, since 2×179172122245144² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 179172122245091 and 179172122245100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178752472 + ... + 179752024.

It is an arithmetic number, because the mean of its divisors is an integer number (3238554960000).

Almost surely, 2^{179172122245144} is an apocalyptic number.

179172122245144 is a gapful number since it is divisible by the number (14) 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 179172122245144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207267517440000).

179172122245144 is an abundant number, since it is smaller than the sum of its proper divisors (235362912634856).

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

179172122245144 is a wasteful number, since it uses less digits than its factorization.

179172122245144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004417 (or 1004413 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The spelling of 179172122245144 in words is "one hundred seventy-nine trillion, one hundred seventy-two billion, one hundred twenty-two million, two hundred forty-five thousand, one hundred forty-four".