1166859418759 has 2 divisors, whose sum is σ = 1166859418760. Its totient is φ = 1166859418758.

The previous prime is 1166859418687. The next prime is 1166859418841. The reversal of 1166859418759 is 9578149586611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1166859418759 - 2¹⁹ = 1166858894471 is a prime.

It is a super-2 number, since 2×1166859418759² (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 (1166859418159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583429709379 + 583429709380.

It is an arithmetic number, because the mean of its divisors is an integer number (583429709380).

Almost surely, 2^{1166859418759} is an apocalyptic number.

1166859418759 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166859418759 is an equidigital number, since it uses as much as digits as its factorization.

1166859418759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 130636800, while the sum is 70.

The spelling of 1166859418759 in words is "one trillion, one hundred sixty-six billion, eight hundred fifty-nine million, four hundred eighteen thousand, seven hundred fifty-nine".