12660545143 has 4 divisors (see below), whose sum is σ = 12660772288. Its totient is φ = 12660318000.

The previous prime is 12660545141. The next prime is 12660545153. The reversal of 12660545143 is 34154506621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34154506621 = 127 ⋅268933123.

It is a cyclic number.

It is not a de Polignac number, because 12660545143 - 2¹ = 12660545141 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 (12660545141) 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, 33643 + ... + 162643.

It is an arithmetic number, because the mean of its divisors is an integer number (3165193072).

Almost surely, 2^12660545143 is an apocalyptic number.

12660545143 is a deficient number, since it is larger than the sum of its proper divisors (227145).

12660545143 is an equidigital number, since it uses as much as digits as its factorization.

12660545143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227144.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 12660545143 in words is "twelve billion, six hundred sixty million, five hundred forty-five thousand, one hundred forty-three".