23436664663 has 4 divisors (see below), whose sum is σ = 23506210000. Its totient is φ = 23367119328.

The previous prime is 23436664649. The next prime is 23436664687. The reversal of 23436664663 is 36646663432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23436664663 is a prime.

It is a super-3 number, since 3×23436664663³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23436674663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34772163 + ... + 34772836.

It is an arithmetic number, because the mean of its divisors is an integer number (5876552500).

Almost surely, 2^23436664663 is an apocalyptic number.

23436664663 is a deficient number, since it is larger than the sum of its proper divisors (69545337).

23436664663 is an equidigital number, since it uses as much as digits as its factorization.

23436664663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69545336.

The product of its digits is 6718464, while the sum is 49.

The spelling of 23436664663 in words is "twenty-three billion, four hundred thirty-six million, six hundred sixty-four thousand, six hundred sixty-three".