180081296172 has 96 divisors (see below), whose sum is σ = 483450240000. Its totient is φ = 57900370752.

The previous prime is 180081296167. The next prime is 180081296177. The reversal of 180081296172 is 271692180081.

180081296172 is a `hidden beast` number, since 1 + 8 + 0 + 0 + 8 + 1 + 29 + 617 + 2 = 666.

180081296172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (180081296167) and next prime (180081296177).

It is not an unprimeable number, because it can be changed into a prime (180081296177) 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, 3226479 + ... + 3281817.

It is an arithmetic number, because the mean of its divisors is an integer number (5035940000).

Almost surely, 2^180081296172 is an apocalyptic number.

180081296172 is a gapful number since it is divisible by the number (12) 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 180081296172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241725120000).

180081296172 is an abundant number, since it is smaller than the sum of its proper divisors (303368943828).

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

180081296172 is a wasteful number, since it uses less digits than its factorization.

180081296172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56420 (or 56412 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 180081296172 in words is "one hundred eighty billion, eighty-one million, two hundred ninety-six thousand, one hundred seventy-two".