1066255871 has 2 divisors, whose sum is σ = 1066255872. Its totient is φ = 1066255870.

The previous prime is 1066255859. The next prime is 1066255891. The reversal of 1066255871 is 1785526601.

It is a weak prime.

It is an emirp because it is prime and its reverse (1785526601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066255871 - 2¹⁴ = 1066239487 is a prime.

It is a super-2 number, since 2×1066255871² = 2273803164883937282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066255891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533127935 + 533127936.

It is an arithmetic number, because the mean of its divisors is an integer number (533127936).

Almost surely, 2^1066255871 is an apocalyptic number.

1066255871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066255871 is an equidigital number, since it uses as much as digits as its factorization.

1066255871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 1066255871 is about 32653.5736329119. The cubic root of 1066255871 is about 1021.6147277687.

The spelling of 1066255871 in words is "one billion, sixty-six million, two hundred fifty-five thousand, eight hundred seventy-one".