1066017775 has 6 divisors (see below), whose sum is σ = 1321862072. Its totient is φ = 852814200.

The previous prime is 1066017769. The next prime is 1066017811. The reversal of 1066017775 is 5777106601.

It is not a de Polignac number, because 1066017775 - 2⁷ = 1066017647 is a prime.

It is a super-2 number, since 2×1066017775² = 2272787793231901250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21320331 + ... + 21320380.

Almost surely, 2^1066017775 is an apocalyptic number.

1066017775 is a deficient number, since it is larger than the sum of its proper divisors (255844297).

1066017775 is an equidigital number, since it uses as much as digits as its factorization.

1066017775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42640721 (or 42640716 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 1066017775 is about 32649.9276415737. The cubic root of 1066017775 is about 1021.5386795785.

The spelling of 1066017775 in words is "one billion, sixty-six million, seventeen thousand, seven hundred seventy-five".