663094563 has 8 divisors (see below), whose sum is σ = 886045776. Its totient is φ = 441103200.

The previous prime is 663094507. The next prime is 663094591. The reversal of 663094563 is 365490366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 663094563 - 2¹³ = 663086371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (663094363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238348 + ... + 241113.

It is an arithmetic number, because the mean of its divisors is an integer number (110755722).

Almost surely, 2^663094563 is an apocalyptic number.

663094563 is a deficient number, since it is larger than the sum of its proper divisors (222951213).

663094563 is a wasteful number, since it uses less digits than its factorization.

663094563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479925.

The product of its (nonzero) digits is 349920, while the sum is 42.

The square root of 663094563 is about 25750.6225749981. The cubic root of 663094563 is about 872.0174097154.

The spelling of 663094563 in words is "six hundred sixty-three million, ninety-four thousand, five hundred sixty-three".