23665220316 has 72 divisors (see below), whose sum is σ = 60105636864. Its totient is φ = 7850881440.

The previous prime is 23665220303. The next prime is 23665220351. The reversal of 23665220316 is 61302256632.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9929661 + ... + 9932043.

It is an arithmetic number, because the mean of its divisors is an integer number (834800512).

Almost surely, 2^23665220316 is an apocalyptic number.

It is an amenable number.

23665220316 is an abundant number, since it is smaller than the sum of its proper divisors (36440416548).

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

23665220316 is a wasteful number, since it uses less digits than its factorization.

23665220316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591 (or 3586 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 23665220316 its reverse (61302256632), we get a palindrome (84967476948).

The spelling of 23665220316 in words is "twenty-three billion, six hundred sixty-five million, two hundred twenty thousand, three hundred sixteen".