13106555515856 has 40 divisors (see below), whose sum is σ = 27715603629504. Its totient is φ = 5954705602560.

The previous prime is 13106555515853. The next prime is 13106555515871. The reversal of 13106555515856 is 65851555560131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13106555515853) 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, 17249756 + ... + 17993531.

Almost surely, 2^{13106555515856} is an apocalyptic number.

13106555515856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13106555515856 is an abundant number, since it is smaller than the sum of its proper divisors (14609048113648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13106555515856 is a wasteful number, since it uses less digits than its factorization.

13106555515856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35245419 (or 35245413 counting only the distinct ones).

The product of its (nonzero) digits is 13500000, while the sum is 56.

The spelling of 13106555515856 in words is "thirteen trillion, one hundred six billion, five hundred fifty-five million, five hundred fifteen thousand, eight hundred fifty-six".