23665220304 has 40 divisors (see below), whose sum is σ = 66692895072. Its totient is φ = 7171278720.

The previous prime is 23665220303. The next prime is 23665220351. The reversal of 23665220304 is 40302256632.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23665220303) 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, 22409719 + ... + 22410774.

Almost surely, 2^23665220304 is an apocalyptic number.

23665220304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23665220304 is an abundant number, since it is smaller than the sum of its proper divisors (43027674768).

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

23665220304 is a wasteful number, since it uses less digits than its factorization.

23665220304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44820515 (or 44820509 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 23665220304 its reverse (40302256632), we get a palindrome (63967476936).

The spelling of 23665220304 in words is "twenty-three billion, six hundred sixty-five million, two hundred twenty thousand, three hundred four".