23665950811 has 4 divisors (see below), whose sum is σ = 23990141992. Its totient is φ = 23341759632.

The previous prime is 23665950799. The next prime is 23665950817. The reversal of 23665950811 is 11805956632.

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

It is a cyclic number.

It is not a de Polignac number, because 23665950811 - 2¹¹ = 23665948763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23665950817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162095481 + ... + 162095626.

It is an arithmetic number, because the mean of its divisors is an integer number (5997535498).

Almost surely, 2^23665950811 is an apocalyptic number.

23665950811 is a deficient number, since it is larger than the sum of its proper divisors (324191181).

23665950811 is an equidigital number, since it uses as much as digits as its factorization.

23665950811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324191180.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 23665950811 in words is "twenty-three billion, six hundred sixty-five million, nine hundred fifty thousand, eight hundred eleven".