1068165271513 has 2 divisors, whose sum is σ = 1068165271514. Its totient is φ = 1068165271512.

The previous prime is 1068165271423. The next prime is 1068165271517. The reversal of 1068165271513 is 3151725618601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1007367520329 + 60797751184 = 1003677^2 + 246572^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068165271513 - 2³³ = 1059575336921 is a prime.

It is a super-2 number, since 2×1068165271513² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1068165271517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534082635756 + 534082635757.

It is an arithmetic number, because the mean of its divisors is an integer number (534082635757).

Almost surely, 2^{1068165271513} is an apocalyptic number.

It is an amenable number.

1068165271513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068165271513 is an equidigital number, since it uses as much as digits as its factorization.

1068165271513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 1068165271513 in words is "one trillion, sixty-eight billion, one hundred sixty-five million, two hundred seventy-one thousand, five hundred thirteen".