1118165617511 has 2 divisors, whose sum is σ = 1118165617512. Its totient is φ = 1118165617510.

The previous prime is 1118165617483. The next prime is 1118165617577. The reversal of 1118165617511 is 1157165618111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118165617511 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118165667511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559082808755 + 559082808756.

It is an arithmetic number, because the mean of its divisors is an integer number (559082808756).

Almost surely, 2^{1118165617511} is an apocalyptic number.

1118165617511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118165617511 is an equidigital number, since it uses as much as digits as its factorization.

1118165617511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 44.

The spelling of 1118165617511 in words is "one trillion, one hundred eighteen billion, one hundred sixty-five million, six hundred seventeen thousand, five hundred eleven".