23316661189 has 2 divisors, whose sum is σ = 23316661190. Its totient is φ = 23316661188.

The previous prime is 23316661187. The next prime is 23316661201. The reversal of 23316661189 is 98116661332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16188236289 + 7128424900 = 127233^2 + 84430^2 .

It is a cyclic number.

It is not a de Polignac number, because 23316661189 - 2¹ = 23316661187 is a prime.

Together with 23316661187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23316661187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11658330594 + 11658330595.

It is an arithmetic number, because the mean of its divisors is an integer number (11658330595).

Almost surely, 2^23316661189 is an apocalyptic number.

It is an amenable number.

23316661189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23316661189 is an equidigital number, since it uses as much as digits as its factorization.

23316661189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The spelling of 23316661189 in words is "twenty-three billion, three hundred sixteen million, six hundred sixty-one thousand, one hundred eighty-nine".