1056565534243 has 16 divisors (see below), whose sum is σ = 1137628812096. Its totient is φ = 977620055040.

The previous prime is 1056565534231. The next prime is 1056565534253. The reversal of 1056565534243 is 3424355656501.

It is a cyclic number.

It is not a de Polignac number, because 1056565534243 - 2²¹ = 1056563437091 is a prime.

It is a super-2 number, since 2×1056565534243² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056565534253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1811130 + ... + 2322352.

It is an arithmetic number, because the mean of its divisors is an integer number (71101800756).

Almost surely, 2^{1056565534243} is an apocalyptic number.

1056565534243 is a deficient number, since it is larger than the sum of its proper divisors (81063277853).

1056565534243 is a wasteful number, since it uses less digits than its factorization.

1056565534243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513294.

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 1056565534243 in words is "one trillion, fifty-six billion, five hundred sixty-five million, five hundred thirty-four thousand, two hundred forty-three".