1063281663 has 12 divisors (see below), whose sum is σ = 1536322320. Its totient is φ = 708637056.

The previous prime is 1063281649. The next prime is 1063281671. The reversal of 1063281663 is 3661823601.

1063281663 is a `hidden beast` number, since 1 + 0 + 632 + 8 + 16 + 6 + 3 = 666.

It is a Cunningham number, because it is equal to 32608²-1.

It is not a de Polignac number, because 1063281663 - 2²⁴ = 1046504447 is a prime.

It is a super-2 number, since 2×1063281663² = 2261135789744091138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063281623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16303 + ... + 48911.

It is an arithmetic number, because the mean of its divisors is an integer number (128026860).

Almost surely, 2^1063281663 is an apocalyptic number.

1063281663 is a deficient number, since it is larger than the sum of its proper divisors (473040657).

1063281663 is a wasteful number, since it uses less digits than its factorization.

1063281663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36238 (or 36235 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1063281663 is about 32607.9999846663. Note that the first 4 decimals coincide. The cubic root of 1063281663 is about 1020.6639477694.

The spelling of 1063281663 in words is "one billion, sixty-three million, two hundred eighty-one thousand, six hundred sixty-three".