23405251566233 has 2 divisors, whose sum is σ = 23405251566234. Its totient is φ = 23405251566232.

The previous prime is 23405251566211. The next prime is 23405251566299. The reversal of 23405251566233 is 33266515250432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12961670453824 + 10443581112409 = 3600232^2 + 3231653^2 .

It is a cyclic number.

It is not a de Polignac number, because 23405251566233 - 2¹⁰ = 23405251565209 is a prime.

It is not a weakly prime, because it can be changed into another prime (23405251866233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11702625783116 + 11702625783117.

It is an arithmetic number, because the mean of its divisors is an integer number (11702625783117).

Almost surely, 2^{23405251566233} is an apocalyptic number.

It is an amenable number.

23405251566233 is a deficient number, since it is larger than the sum of its proper divisors (1).

23405251566233 is an equidigital number, since it uses as much as digits as its factorization.

23405251566233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 23405251566233 in words is "twenty-three trillion, four hundred five billion, two hundred fifty-one million, five hundred sixty-six thousand, two hundred thirty-three".