1563243066 has 48 divisors (see below), whose sum is σ = 4222790208. Its totient is φ = 406036800.

The previous prime is 1563243061. The next prime is 1563243091. The reversal of 1563243066 is 6603423651.

1563243066 is a `hidden beast` number, since 1 + 563 + 2 + 4 + 30 + 66 = 666.

1563243066 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1563243066.

It is not an unprimeable number, because it can be changed into a prime (1563243061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562555 + ... + 565326.

It is an arithmetic number, because the mean of its divisors is an integer number (87974796).

Almost surely, 2^1563243066 is an apocalyptic number.

1563243066 is an abundant number, since it is smaller than the sum of its proper divisors (2659547142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1563243066 is a wasteful number, since it uses less digits than its factorization.

1563243066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127907 (or 1127904 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 1563243066 is about 39537.8687589506. The cubic root of 1563243066 is about 1160.5811262834.

The spelling of 1563243066 in words is "one billion, five hundred sixty-three million, two hundred forty-three thousand, sixty-six".