21466322366407 has 2 divisors, whose sum is σ = 21466322366408. Its totient is φ = 21466322366406.

The previous prime is 21466322366353. The next prime is 21466322366471. The reversal of 21466322366407 is 70466322366412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21466322366407 - 2¹⁵ = 21466322333639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21466322367407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10733161183203 + 10733161183204.

It is an arithmetic number, because the mean of its divisors is an integer number (10733161183204).

Almost surely, 2^{21466322366407} is an apocalyptic number.

21466322366407 is a deficient number, since it is larger than the sum of its proper divisors (1).

21466322366407 is an equidigital number, since it uses as much as digits as its factorization.

21466322366407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 52.

The spelling of 21466322366407 in words is "twenty-one trillion, four hundred sixty-six billion, three hundred twenty-two million, three hundred sixty-six thousand, four hundred seven".