1175118415591 has 2 divisors, whose sum is σ = 1175118415592. Its totient is φ = 1175118415590.

The previous prime is 1175118415531. The next prime is 1175118415643. The reversal of 1175118415591 is 1955148115711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1175118415591 - 2¹¹ = 1175118413543 is a prime.

It is a super-2 number, since 2×1175118415591² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1175118415531) 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 as a sum of consecutive naturals, namely, 587559207795 + 587559207796.

It is an arithmetic number, because the mean of its divisors is an integer number (587559207796).

Almost surely, 2^{1175118415591} is an apocalyptic number.

1175118415591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1175118415591 is an equidigital number, since it uses as much as digits as its factorization.

1175118415591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 49.

The spelling of 1175118415591 in words is "one trillion, one hundred seventy-five billion, one hundred eighteen million, four hundred fifteen thousand, five hundred ninety-one".