13061306256543 has 48 divisors (see below), whose sum is σ = 20202706567680. Its totient is φ = 8107628608512.

The previous prime is 13061306256541. The next prime is 13061306256577. The reversal of 13061306256543 is 34565260316031.

13061306256543 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 13 + 0 + 625 + 6 + 5 + 4 + 3 = 666.

It is not a de Polignac number, because 13061306256543 - 2¹ = 13061306256541 is a prime.

It is a super-2 number, since 2×13061306256543² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13061306256541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 355146 + ... + 5123352.

It is an arithmetic number, because the mean of its divisors is an integer number (420889720160).

Almost surely, 2^{13061306256543} is an apocalyptic number.

13061306256543 is a deficient number, since it is larger than the sum of its proper divisors (7141400311137).

13061306256543 is a wasteful number, since it uses less digits than its factorization.

13061306256543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4768508 (or 4768505 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 13061306256543 in words is "thirteen trillion, sixty-one billion, three hundred six million, two hundred fifty-six thousand, five hundred forty-three".