12446505522 has 240 divisors, whose sum is σ = 33694879680. Its totient is φ = 3415452480.

The previous prime is 12446505521. The next prime is 12446505529. The reversal of 12446505522 is 22550564421.

12446505522 is a `hidden beast` number, since 1 + 2 + 44 + 65 + 0 + 552 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (12446505521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 8565348 + ... + 8566800.

It is an arithmetic number, because the mean of its divisors is an integer number (140395332).

Almost surely, 2^12446505522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12446505522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16847439840).

12446505522 is an abundant number, since it is smaller than the sum of its proper divisors (21248374158).

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

12446505522 is a wasteful number, since it uses less digits than its factorization.

12446505522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 12446505522 in words is "twelve billion, four hundred forty-six million, five hundred five thousand, five hundred twenty-two".