12660535422527 has 4 divisors (see below), whose sum is σ = 13210993484400. Its totient is φ = 12110077360656.

The previous prime is 12660535422463. The next prime is 12660535422529. The reversal of 12660535422527 is 72522453506621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12660535422527 - 2⁶ = 12660535422463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12660535422529) 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, 275229030902 + ... + 275229030947.

It is an arithmetic number, because the mean of its divisors is an integer number (3302748371100).

Almost surely, 2^{12660535422527} is an apocalyptic number.

12660535422527 is a deficient number, since it is larger than the sum of its proper divisors (550458061873).

12660535422527 is an equidigital number, since it uses as much as digits as its factorization.

12660535422527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550458061872.

The product of its (nonzero) digits is 6048000, while the sum is 50.

The spelling of 12660535422527 in words is "twelve trillion, six hundred sixty billion, five hundred thirty-five million, four hundred twenty-two thousand, five hundred twenty-seven".