23942706661 has 2 divisors, whose sum is σ = 23942706662. Its totient is φ = 23942706660.

The previous prime is 23942706539. The next prime is 23942706701. The reversal of 23942706661 is 16660724932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23810341636 + 132365025 = 154306^2 + 11505^2 .

It is a cyclic number.

It is not a de Polignac number, because 23942706661 - 2⁷ = 23942706533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23942706061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11971353330 + 11971353331.

It is an arithmetic number, because the mean of its divisors is an integer number (11971353331).

Almost surely, 2^23942706661 is an apocalyptic number.

It is an amenable number.

23942706661 is a deficient number, since it is larger than the sum of its proper divisors (1).

23942706661 is an equidigital number, since it uses as much as digits as its factorization.

23942706661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 23942706661 in words is "twenty-three billion, nine hundred forty-two million, seven hundred six thousand, six hundred sixty-one".