12664665053 has 8 divisors (see below), whose sum is σ = 13217021376. Its totient is φ = 12112452000.

The previous prime is 12664664977. The next prime is 12664665071. The reversal of 12664665053 is 35056646621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12664665053 - 2¹⁶ = 12664599517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12664664995 and 12664665013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664665353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170078 + ... + 232928.

It is an arithmetic number, because the mean of its divisors is an integer number (1652127672).

Almost surely, 2^12664665053 is an apocalyptic number.

It is an amenable number.

12664665053 is a deficient number, since it is larger than the sum of its proper divisors (552356323).

12664665053 is an equidigital number, since it uses as much as digits as its factorization.

12664665053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71635.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 12664665053 in words is "twelve billion, six hundred sixty-four million, six hundred sixty-five thousand, fifty-three".