1056565534187 has 2 divisors, whose sum is σ = 1056565534188. Its totient is φ = 1056565534186.

The previous prime is 1056565534151. The next prime is 1056565534201. The reversal of 1056565534187 is 7814355656501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1056565534187 - 2¹² = 1056565530091 is a prime.

It is a super-2 number, since 2×1056565534187² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1056565534987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528282767093 + 528282767094.

It is an arithmetic number, because the mean of its divisors is an integer number (528282767094).

Almost surely, 2^{1056565534187} is an apocalyptic number.

1056565534187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056565534187 is an equidigital number, since it uses as much as digits as its factorization.

1056565534187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120000, while the sum is 56.

The spelling of 1056565534187 in words is "one trillion, fifty-six billion, five hundred sixty-five million, five hundred thirty-four thousand, one hundred eighty-seven".