12640150025148 has 48 divisors (see below), whose sum is σ = 29576120577696. Its totient is φ = 4201609175040.

The previous prime is 12640150025137. The next prime is 12640150025201. The reversal of 12640150025148 is 84152005104621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40311340 + ... + 40623692.

It is an arithmetic number, because the mean of its divisors is an integer number (616169178702).

Almost surely, 2^{12640150025148} is an apocalyptic number.

It is an amenable number.

12640150025148 is an abundant number, since it is smaller than the sum of its proper divisors (16935970552548).

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

12640150025148 is a wasteful number, since it uses less digits than its factorization.

12640150025148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321774 (or 321772 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

Adding to 12640150025148 its reverse (84152005104621), we get a palindrome (96792155129769).

The spelling of 12640150025148 in words is "twelve trillion, six hundred forty billion, one hundred fifty million, twenty-five thousand, one hundred forty-eight".