1166881843 has 2 divisors, whose sum is σ = 1166881844. Its totient is φ = 1166881842.

The previous prime is 1166881829. The next prime is 1166881861. The reversal of 1166881843 is 3481886611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1166881843 - 2²⁵ = 1133327411 is a prime.

It is a super-2 number, since 2×1166881843² = 2723226471046153298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1166881793 and 1166881802.

It is not a weakly prime, because it can be changed into another prime (1166881813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583440921 + 583440922.

It is an arithmetic number, because the mean of its divisors is an integer number (583440922).

Almost surely, 2^1166881843 is an apocalyptic number.

1166881843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166881843 is an equidigital number, since it uses as much as digits as its factorization.

1166881843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 46.

The square root of 1166881843 is about 34159.6522669655. The cubic root of 1166881843 is about 1052.7913161593.

The spelling of 1166881843 in words is "one billion, one hundred sixty-six million, eight hundred eighty-one thousand, eight hundred forty-three".