1313555563543 has 8 divisors (see below), whose sum is σ = 1340629065776. Its totient is φ = 1286660764800.

The previous prime is 1313555563519. The next prime is 1313555563547. The reversal of 1313555563543 is 3453655553131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313555563543 - 2²⁹ = 1313018692631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313555563547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44661021 + ... + 44690422.

It is an arithmetic number, because the mean of its divisors is an integer number (167578633222).

Almost surely, 2^{1313555563543} is an apocalyptic number.

1313555563543 is a deficient number, since it is larger than the sum of its proper divisors (27073502233).

1313555563543 is an equidigital number, since it uses as much as digits as its factorization.

1313555563543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89351745.

The product of its digits is 6075000, while the sum is 49.

The spelling of 1313555563543 in words is "one trillion, three hundred thirteen billion, five hundred fifty-five million, five hundred sixty-three thousand, five hundred forty-three".