23663000000 has 98 divisors (see below), whose sum is σ = 58697061168. Its totient is φ = 9464800000.

The previous prime is 23662999999. The next prime is 23663000027. The reversal of 23663000000 is 36632.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 988169 + ... + 1011831.

Almost surely, 2^23663000000 is an apocalyptic number.

23663000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23663000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29348530584).

23663000000 is an abundant number, since it is smaller than the sum of its proper divisors (35034061168).

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

23663000000 is an frugal number, since it uses more digits than its factorization.

23663000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23705 (or 23670 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23663000000 its reverse (36632), we get a palindrome (23663036632).

The spelling of 23663000000 in words is "twenty-three billion, six hundred sixty-three million", and thus it is an aban number.