23630662661 has 2 divisors, whose sum is σ = 23630662662. Its totient is φ = 23630662660.

The previous prime is 23630662639. The next prime is 23630662667. The reversal of 23630662661 is 16626603632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15582778561 + 8047884100 = 124831^2 + 89710^2 .

It is a cyclic number.

It is not a de Polignac number, because 23630662661 - 2⁶ = 23630662597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23630662667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11815331330 + 11815331331.

It is an arithmetic number, because the mean of its divisors is an integer number (11815331331).

Almost surely, 2^23630662661 is an apocalyptic number.

It is an amenable number.

23630662661 is a deficient number, since it is larger than the sum of its proper divisors (1).

23630662661 is an equidigital number, since it uses as much as digits as its factorization.

23630662661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 23630662661 in words is "twenty-three billion, six hundred thirty million, six hundred sixty-two thousand, six hundred sixty-one".