22406416710581 has 2 divisors, whose sum is σ = 22406416710582. Its totient is φ = 22406416710580.

The previous prime is 22406416710523. The next prime is 22406416710679. The reversal of 22406416710581 is 18501761460422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19714221604900 + 2692195105681 = 4440070^2 + 1640791^2 .

It is a cyclic number.

It is not a de Polignac number, because 22406416710581 - 2²⁶ = 22406349601717 is a prime.

It is a super-2 number, since 2×22406416710581² (a number of 28 digits) contains 22 as substring.

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 (22406416310581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11203208355290 + 11203208355291.

It is an arithmetic number, because the mean of its divisors is an integer number (11203208355291).

Almost surely, 2^{22406416710581} is an apocalyptic number.

It is an amenable number.

22406416710581 is a deficient number, since it is larger than the sum of its proper divisors (1).

22406416710581 is an equidigital number, since it uses as much as digits as its factorization.

22406416710581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 22406416710581 in words is "twenty-two trillion, four hundred six billion, four hundred sixteen million, seven hundred ten thousand, five hundred eighty-one".