1066163863 has 4 divisors (see below), whose sum is σ = 1066844088. Its totient is φ = 1065483640.

The previous prime is 1066163849. The next prime is 1066163869. The reversal of 1066163863 is 3683616601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066163863 is a prime.

It is a super-2 number, since 2×1066163863² = 2273410765534165538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066163869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 337756 + ... + 340897.

It is an arithmetic number, because the mean of its divisors is an integer number (266711022).

Almost surely, 2^1066163863 is an apocalyptic number.

1066163863 is a deficient number, since it is larger than the sum of its proper divisors (680225).

1066163863 is an equidigital number, since it uses as much as digits as its factorization.

1066163863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680224.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 1066163863 is about 32652.1647521263. The cubic root of 1066163863 is about 1021.5853416291.

The spelling of 1066163863 in words is "one billion, sixty-six million, one hundred sixty-three thousand, eight hundred sixty-three".