23316351661 has 2 divisors, whose sum is σ = 23316351662. Its totient is φ = 23316351660.

The previous prime is 23316351629. The next prime is 23316351671. The reversal of 23316351661 is 16615361332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22374475561 + 941876100 = 149581^2 + 30690^2 .

It is a cyclic number.

It is not a de Polignac number, because 23316351661 - 2⁵ = 23316351629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23316351661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23316351671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11658175830 + 11658175831.

It is an arithmetic number, because the mean of its divisors is an integer number (11658175831).

Almost surely, 2^23316351661 is an apocalyptic number.

It is an amenable number.

23316351661 is a deficient number, since it is larger than the sum of its proper divisors (1).

23316351661 is an equidigital number, since it uses as much as digits as its factorization.

23316351661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 37.

The spelling of 23316351661 in words is "twenty-three billion, three hundred sixteen million, three hundred fifty-one thousand, six hundred sixty-one".