1066163249 has 4 divisors (see below), whose sum is σ = 1075598436. Its totient is φ = 1056728064.

The previous prime is 1066163239. The next prime is 1066163261. The reversal of 1066163249 is 9423616601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71707024 + 994456225 = 8468^2 + 31535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066163249 - 2⁴ = 1066163233 is a prime.

It is a super-2 number, since 2×1066163249² = 2273408147036472002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066163239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4717424 + ... + 4717649.

It is an arithmetic number, because the mean of its divisors is an integer number (268899609).

Almost surely, 2^1066163249 is an apocalyptic number.

It is an amenable number.

1066163249 is a deficient number, since it is larger than the sum of its proper divisors (9435187).

1066163249 is an equidigital number, since it uses as much as digits as its factorization.

1066163249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9435186.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1066163249 is about 32652.1553499918. The cubic root of 1066163249 is about 1021.5851455200.

The spelling of 1066163249 in words is "one billion, sixty-six million, one hundred sixty-three thousand, two hundred forty-nine".