22561535506469 has 2 divisors, whose sum is σ = 22561535506470. Its totient is φ = 22561535506468.

The previous prime is 22561535506427. The next prime is 22561535506511. The reversal of 22561535506469 is 96460553516522.

It is a balanced prime because it is at equal distance from previous prime (22561535506427) and next prime (22561535506511).

It can be written as a sum of positive squares in only one way, i.e., 15847803664900 + 6713731841569 = 3980930^2 + 2591087^2 .

It is a cyclic number.

It is not a de Polignac number, because 22561535506469 - 2¹⁶ = 22561535440933 is a prime.

It is a super-2 number, since 2×22561535506469² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22561535506409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11280767753234 + 11280767753235.

It is an arithmetic number, because the mean of its divisors is an integer number (11280767753235).

Almost surely, 2^{22561535506469} is an apocalyptic number.

It is an amenable number.

22561535506469 is a deficient number, since it is larger than the sum of its proper divisors (1).

22561535506469 is an equidigital number, since it uses as much as digits as its factorization.

22561535506469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320000, while the sum is 59.

The spelling of 22561535506469 in words is "twenty-two trillion, five hundred sixty-one billion, five hundred thirty-five million, five hundred six thousand, four hundred sixty-nine".