23665650224389 has 2 divisors, whose sum is σ = 23665650224390. Its totient is φ = 23665650224388.

The previous prime is 23665650224347. The next prime is 23665650224393. The reversal of 23665650224389 is 98342205656632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23486672153025 + 178978071364 = 4846305^2 + 423058^2 .

It is a cyclic number.

It is not a de Polignac number, because 23665650224389 - 2⁹ = 23665650223877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23665650224309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11832825112194 + 11832825112195.

It is an arithmetic number, because the mean of its divisors is an integer number (11832825112195).

Almost surely, 2^{23665650224389} is an apocalyptic number.

It is an amenable number.

23665650224389 is a deficient number, since it is larger than the sum of its proper divisors (1).

23665650224389 is an equidigital number, since it uses as much as digits as its factorization.

23665650224389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111974400, while the sum is 61.

The spelling of 23665650224389 in words is "twenty-three trillion, six hundred sixty-five billion, six hundred fifty million, two hundred twenty-four thousand, three hundred eighty-nine".