23666702489 has 2 divisors, whose sum is σ = 23666702490. Its totient is φ = 23666702488.

The previous prime is 23666702413. The next prime is 23666702491. The reversal of 23666702489 is 98420766632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22225740889 + 1440961600 = 149083^2 + 37960^2 .

It is a cyclic number.

It is not a de Polignac number, because 23666702489 - 2¹⁶ = 23666636953 is a prime.

It is a super-2 number, since 2×23666702489² (a number of 22 digits) contains 22 as substring.

Together with 23666702491, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23666702489.

It is not a weakly prime, because it can be changed into another prime (23666702789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11833351244 + 11833351245.

It is an arithmetic number, because the mean of its divisors is an integer number (11833351245).

Almost surely, 2^23666702489 is an apocalyptic number.

It is an amenable number.

23666702489 is a deficient number, since it is larger than the sum of its proper divisors (1).

23666702489 is an equidigital number, since it uses as much as digits as its factorization.

23666702489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 23666702489 in words is "twenty-three billion, six hundred sixty-six million, seven hundred two thousand, four hundred eighty-nine".