22326493661 has 2 divisors, whose sum is σ = 22326493662. Its totient is φ = 22326493660.

The previous prime is 22326493643. The next prime is 22326493681. The reversal of 22326493661 is 16639462322.

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., 13529179225 + 8797314436 = 116315^2 + 93794^2 .

It is a cyclic number.

It is not a de Polignac number, because 22326493661 - 2³⁰ = 21252751837 is a prime.

It is a super-3 number, since 3×22326493661³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22326493681) 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, 11163246830 + 11163246831.

It is an arithmetic number, because the mean of its divisors is an integer number (11163246831).

Almost surely, 2^22326493661 is an apocalyptic number.

It is an amenable number.

22326493661 is a deficient number, since it is larger than the sum of its proper divisors (1).

22326493661 is an equidigital number, since it uses as much as digits as its factorization.

22326493661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 44.

The spelling of 22326493661 in words is "twenty-two billion, three hundred twenty-six million, four hundred ninety-three thousand, six hundred sixty-one".