12664510445 has 16 divisors (see below), whose sum is σ = 15775326720. Its totient is φ = 9749985600.

The previous prime is 12664510427. The next prime is 12664510483. The reversal of 12664510445 is 54401546621.

It is a happy number.

It is not a de Polignac number, because 12664510445 - 2⁸ = 12664510189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12664510399 and 12664510408.

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, 200486 + ... + 255975.

It is an arithmetic number, because the mean of its divisors is an integer number (985957920).

Almost surely, 2^12664510445 is an apocalyptic number.

It is an amenable number.

12664510445 is a deficient number, since it is larger than the sum of its proper divisors (3110816275).

12664510445 is a wasteful number, since it uses less digits than its factorization.

12664510445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456676.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 12664510445 in words is "twelve billion, six hundred sixty-four million, five hundred ten thousand, four hundred forty-five".