1063213666 has 16 divisors (see below), whose sum is σ = 1681702560. Its totient is φ = 502744320.

The previous prime is 1063213607. The next prime is 1063213691. The reversal of 1063213666 is 6663123601.

It is a super-2 number, since 2×1063213666² = 2260846599138319112, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2320 + ... + 46171.

It is an arithmetic number, because the mean of its divisors is an integer number (105106410).

Almost surely, 2^1063213666 is an apocalyptic number.

1063213666 is a deficient number, since it is larger than the sum of its proper divisors (618488894).

1063213666 is a wasteful number, since it uses less digits than its factorization.

1063213666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49089.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 1063213666 is about 32606.9573250863. The cubic root of 1063213666 is about 1020.6421901084.

The spelling of 1063213666 in words is "one billion, sixty-three million, two hundred thirteen thousand, six hundred sixty-six".