13270566557997 has 40 divisors (see below), whose sum is σ = 22668504533312. Its totient is φ = 7578969768000.

The previous prime is 13270566557977. The next prime is 13270566558013. The reversal of 13270566557997 is 79975566507231.

13270566557997 is a `hidden beast` number, since 1 + 3 + 2 + 7 + 0 + 5 + 66 + 557 + 9 + 9 + 7 = 666.

It is not a de Polignac number, because 13270566557997 - 2¹⁴ = 13270566541613 is a prime.

It is a super-2 number, since 2×13270566557997² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13270566557917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5476579 + ... + 7518912.

Almost surely, 2^{13270566557997} is an apocalyptic number.

It is an amenable number.

13270566557997 is a deficient number, since it is larger than the sum of its proper divisors (9397937975315).

13270566557997 is a wasteful number, since it uses less digits than its factorization.

13270566557997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12997311 (or 12997302 counting only the distinct ones).

The product of its (nonzero) digits is 750141000, while the sum is 72.

The spelling of 13270566557997 in words is "thirteen trillion, two hundred seventy billion, five hundred sixty-six million, five hundred fifty-seven thousand, nine hundred ninety-seven".