1066566875 has 20 divisors (see below), whose sum is σ = 1453953336. Its totient is φ = 775680000.

The previous prime is 1066566871. The next prime is 1066566929. The reversal of 1066566875 is 5786656601.

It is not a de Polignac number, because 1066566875 - 2² = 1066566871 is a prime.

It is a super-2 number, since 2×1066566875² = 2275129797694531250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066566871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 70694 + ... + 84443.

Almost surely, 2^1066566875 is an apocalyptic number.

1066566875 is a deficient number, since it is larger than the sum of its proper divisors (387386461).

1066566875 is an equidigital number, since it uses as much as digits as its factorization.

1066566875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155168 (or 155153 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The square root of 1066566875 is about 32658.3354597261. The cubic root of 1066566875 is about 1021.7140458246.

The spelling of 1066566875 in words is "one billion, sixty-six million, five hundred sixty-six thousand, eight hundred seventy-five".