180226721376 has 216 divisors, whose sum is σ = 564084271296. Its totient is φ = 54544389120.

The previous prime is 180226721359. The next prime is 180226721377. The reversal of 180226721376 is 673127622081.

180226721376 is a `hidden beast` number, since 18 + 0 + 2 + 267 + 2 + 1 + 376 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180226721377) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2938641 + ... + 2999343.

It is an arithmetic number, because the mean of its divisors is an integer number (2611501256).

Almost surely, 2^180226721376 is an apocalyptic number.

180226721376 is a gapful number since it is divisible by the number (16) 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 180226721376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282042135648).

180226721376 is an abundant number, since it is smaller than the sum of its proper divisors (383857549920).

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

180226721376 is a wasteful number, since it uses less digits than its factorization.

180226721376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60806 (or 60782 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 180226721376 in words is "one hundred eighty billion, two hundred twenty-six million, seven hundred twenty-one thousand, three hundred seventy-six".