12180282550 has 24 divisors (see below), whose sum is σ = 22769190000. Its totient is φ = 4847626080.

The previous prime is 12180282539. The next prime is 12180282551. The reversal of 12180282550 is 5528208121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180282551) 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, 602125 + ... + 622024.

It is an arithmetic number, because the mean of its divisors is an integer number (948716250).

Almost surely, 2^12180282550 is an apocalyptic number.

12180282550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12180282550 is a deficient number, since it is larger than the sum of its proper divisors (10588907450).

12180282550 is a wasteful number, since it uses less digits than its factorization.

12180282550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224360 (or 1224355 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The spelling of 12180282550 in words is "twelve billion, one hundred eighty million, two hundred eighty-two thousand, five hundred fifty".