305212880180 has 96 divisors (see below), whose sum is σ = 712748574720. Its totient is φ = 109023229440.

The previous prime is 305212880153. The next prime is 305212880251. The reversal of 305212880180 is 81088212503.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47768426 + ... + 47774814.

It is an arithmetic number, because the mean of its divisors is an integer number (7424464320).

Almost surely, 2^305212880180 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 305212880180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356374287360).

305212880180 is an abundant number, since it is smaller than the sum of its proper divisors (407535694540).

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

305212880180 is a wasteful number, since it uses less digits than its factorization.

305212880180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12369 (or 12367 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 305212880180 in words is "three hundred five billion, two hundred twelve million, eight hundred eighty thousand, one hundred eighty".