12645445305663 has 6 divisors (see below), whose sum is σ = 18265643219304. Its totient is φ = 8430296870436.

The previous prime is 12645445305587. The next prime is 12645445305719. The reversal of 12645445305663 is 36650354454621.

12645445305663 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 5 + 4 + 45 + 30 + 566 + 3 = 666.

12645445305663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12645445305663 - 2²⁶ = 12645378196799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645445305463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 702524739195 + ... + 702524739212.

It is an arithmetic number, because the mean of its divisors is an integer number (3044273869884).

Almost surely, 2^{12645445305663} is an apocalyptic number.

12645445305663 is a deficient number, since it is larger than the sum of its proper divisors (5620197913641).

12645445305663 is a wasteful number, since it uses less digits than its factorization.

12645445305663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405049478413 (or 1405049478410 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 12645445305663 in words is "twelve trillion, six hundred forty-five billion, four hundred forty-five million, three hundred five thousand, six hundred sixty-three".