13263660316642 has 16 divisors (see below), whose sum is σ = 20380953505752. Its totient is φ = 6470012436480.

The previous prime is 13263660316637. The next prime is 13263660316649. The reversal of 13263660316642 is 24661306636231.

13263660316642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11431505864601 + 1832154452041 = 3381051^2 + 1353571^2 .

It is not an unprimeable number, because it can be changed into a prime (13263660316649) 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, 7848418 + ... + 9387490.

Almost surely, 2^{13263660316642} is an apocalyptic number.

13263660316642 is a deficient number, since it is larger than the sum of its proper divisors (7117293189110).

13263660316642 is a wasteful number, since it uses less digits than its factorization.

13263660316642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644213.

The product of its (nonzero) digits is 3359232, while the sum is 49.

The spelling of 13263660316642 in words is "thirteen trillion, two hundred sixty-three billion, six hundred sixty million, three hundred sixteen thousand, six hundred forty-two".