22421626316497 has 2 divisors, whose sum is σ = 22421626316498. Its totient is φ = 22421626316496.

The previous prime is 22421626316489. The next prime is 22421626316521. The reversal of 22421626316497 is 79461362612422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14247310742721 + 8174315573776 = 3774561^2 + 2859076^2 .

It is a cyclic number.

It is not a de Polignac number, because 22421626316497 - 2³ = 22421626316489 is a prime.

It is not a weakly prime, because it can be changed into another prime (22421626316477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11210813158248 + 11210813158249.

It is an arithmetic number, because the mean of its divisors is an integer number (11210813158249).

Almost surely, 2^{22421626316497} is an apocalyptic number.

It is an amenable number.

22421626316497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22421626316497 is an equidigital number, since it uses as much as digits as its factorization.

22421626316497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 55.

The spelling of 22421626316497 in words is "twenty-two trillion, four hundred twenty-one billion, six hundred twenty-six million, three hundred sixteen thousand, four hundred ninety-seven".