12660274770436 has 6 divisors (see below), whose sum is σ = 22155480848270. Its totient is φ = 6330137385216.

The previous prime is 12660274770433. The next prime is 12660274770503. The reversal of 12660274770436 is 63407747206621.

It can be written as a sum of positive squares in only one way, i.e., 11801698329600 + 858576440836 = 3435360^2 + 926594^2 .

It is not an unprimeable number, because it can be changed into a prime (12660274770433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1582534346301 + ... + 1582534346308.

Almost surely, 2^{12660274770436} is an apocalyptic number.

It is an amenable number.

12660274770436 is a deficient number, since it is larger than the sum of its proper divisors (9495206077834).

12660274770436 is a wasteful number, since it uses less digits than its factorization.

12660274770436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165068692613 (or 3165068692611 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 55.

The spelling of 12660274770436 in words is "twelve trillion, six hundred sixty billion, two hundred seventy-four million, seven hundred seventy thousand, four hundred thirty-six".