12645242411650 has 12 divisors (see below), whose sum is σ = 23520150885762. Its totient is φ = 5058096964640.

The previous prime is 12645242411609. The next prime is 12645242411663. The reversal of 12645242411650 is 5611424254621.

It can be written as a sum of positive squares in 3 ways, for example, as 11044741629769 + 1600500781881 = 3323363^2 + 1265109^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12645242411597 and 12645242411606.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126452424067 + ... + 126452424166.

Almost surely, 2^{12645242411650} is an apocalyptic number.

12645242411650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12645242411650 is a deficient number, since it is larger than the sum of its proper divisors (10874908474112).

12645242411650 is a wasteful number, since it uses less digits than its factorization.

12645242411650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252904848245 (or 252904848240 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 12645242411650 in words is "twelve trillion, six hundred forty-five billion, two hundred forty-two million, four hundred eleven thousand, six hundred fifty".