13126656013136 has 20 divisors (see below), whose sum is σ = 25527442115700. Its totient is φ = 6538929015552.

The previous prime is 13126656013129. The next prime is 13126656013153. The reversal of 13126656013136 is 63131065662131.

It can be written as a sum of positive squares in 2 ways, for example, as 3975062987536 + 9151593025600 = 1993756^2 + 3025160^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1524932501 + ... + 1524941108.

It is an arithmetic number, because the mean of its divisors is an integer number (1276372105785).

Almost surely, 2^{13126656013136} is an apocalyptic number.

13126656013136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13126656013136 is a deficient number, since it is larger than the sum of its proper divisors (12400786102564).

13126656013136 is a wasteful number, since it uses less digits than its factorization.

13126656013136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049873886 (or 3049873880 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 13126656013136 in words is "thirteen trillion, one hundred twenty-six billion, six hundred fifty-six million, thirteen thousand, one hundred thirty-six".