23663217663 has 32 divisors (see below), whose sum is σ = 35176128000. Its totient is φ = 15721812288.

The previous prime is 23663217653. The next prime is 23663217751. The reversal of 23663217663 is 36671236632.

23663217663 is a `hidden beast` number, since 2 + 3 + 6 + 632 + 1 + 7 + 6 + 6 + 3 = 666.

It is not a de Polignac number, because 23663217663 - 2⁴ = 23663217647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23663217623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14279931 + ... + 14281587.

It is an arithmetic number, because the mean of its divisors is an integer number (1099254000).

Almost surely, 2^23663217663 is an apocalyptic number.

23663217663 is a deficient number, since it is larger than the sum of its proper divisors (11512910337).

23663217663 is a wasteful number, since it uses less digits than its factorization.

23663217663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3142 counting only the distinct ones).

The product of its digits is 979776, while the sum is 45.

The spelling of 23663217663 in words is "twenty-three billion, six hundred sixty-three million, two hundred seventeen thousand, six hundred sixty-three".