12251412064446 has 16 divisors (see below), whose sum is σ = 24502858423824. Its totient is φ = 4083798305664.

The previous prime is 12251412064403. The next prime is 12251412064531. The reversal of 12251412064446 is 64446021415221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12251412064398 and 12251412064407.

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 7 ways as a sum of consecutive naturals, for example, 7838310 + ... + 9270486.

It is an arithmetic number, because the mean of its divisors is an integer number (1531428651489).

Almost surely, 2^{12251412064446} is an apocalyptic number.

12251412064446 is an abundant number, since it is smaller than the sum of its proper divisors (12251446359378).

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

12251412064446 is a wasteful number, since it uses less digits than its factorization.

12251412064446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857915.

The product of its (nonzero) digits is 368640, while the sum is 42.

Adding to 12251412064446 its reverse (64446021415221), we get a palindrome (76697433479667).

The spelling of 12251412064446 in words is "twelve trillion, two hundred fifty-one billion, four hundred twelve million, sixty-four thousand, four hundred forty-six".