22641365009 has 2 divisors, whose sum is σ = 22641365010. Its totient is φ = 22641365008.

The previous prime is 22641364987. The next prime is 22641365027. The reversal of 22641365009 is 90056314622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13659064384 + 8982300625 = 116872^2 + 94775^2 .

It is a cyclic number.

It is not a de Polignac number, because 22641365009 - 2¹² = 22641360913 is a prime.

It is not a weakly prime, because it can be changed into another prime (22641365069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11320682504 + 11320682505.

It is an arithmetic number, because the mean of its divisors is an integer number (11320682505).

Almost surely, 2^22641365009 is an apocalyptic number.

It is an amenable number.

22641365009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22641365009 is an equidigital number, since it uses as much as digits as its factorization.

22641365009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 22641365009 in words is "twenty-two billion, six hundred forty-one million, three hundred sixty-five thousand, nine".