12650651644 has 12 divisors (see below), whose sum is σ = 22175977824. Its totient is φ = 6314657984.

The previous prime is 12650651641. The next prime is 12650651653. The reversal of 12650651644 is 44615605621.

It is a junction number, because it is equal to n+sod(n) for n = 12650651597 and 12650651606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12650651641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2664292 + ... + 2669035.

It is an arithmetic number, because the mean of its divisors is an integer number (1847998152).

Almost surely, 2^12650651644 is an apocalyptic number.

It is an amenable number.

12650651644 is a deficient number, since it is larger than the sum of its proper divisors (9525326180).

12650651644 is a wasteful number, since it uses less digits than its factorization.

12650651644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333924 (or 5333922 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 12650651644 in words is "twelve billion, six hundred fifty million, six hundred fifty-one thousand, six hundred forty-four".