1066117867 has 2 divisors, whose sum is σ = 1066117868. Its totient is φ = 1066117866.

The previous prime is 1066117861. The next prime is 1066117891. The reversal of 1066117867 is 7687116601.

It is a weak prime.

It is an emirp because it is prime and its reverse (7687116601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066117867 - 2¹¹ = 1066115819 is a prime.

It is a super-2 number, since 2×1066117867² = 2273214612673259378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066117861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533058933 + 533058934.

It is an arithmetic number, because the mean of its divisors is an integer number (533058934).

Almost surely, 2^1066117867 is an apocalyptic number.

1066117867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066117867 is an equidigital number, since it uses as much as digits as its factorization.

1066117867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 1066117867 is about 32651.4604114425. The cubic root of 1066117867 is about 1021.5706504806.

The spelling of 1066117867 in words is "one billion, sixty-six million, one hundred seventeen thousand, eight hundred sixty-seven".