8605716663 has 4 divisors (see below), whose sum is σ = 11474288888. Its totient is φ = 5737144440.

The previous prime is 8605716649. The next prime is 8605716673. The reversal of 8605716663 is 3666175068.

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

It is not a de Polignac number, because 8605716663 - 2⁸ = 8605716407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8605716673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434286108 + ... + 1434286113.

It is an arithmetic number, because the mean of its divisors is an integer number (2868572222).

Almost surely, 2^8605716663 is an apocalyptic number.

8605716663 is a deficient number, since it is larger than the sum of its proper divisors (2868572225).

8605716663 is a wasteful number, since it uses less digits than its factorization.

8605716663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868572224.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 8605716663 is about 92767.0020158030. The cubic root of 8605716663 is about 2049.2534789657.

The spelling of 8605716663 in words is "eight billion, six hundred five million, seven hundred sixteen thousand, six hundred sixty-three".