22040555609 has 2 divisors, whose sum is σ = 22040555610. Its totient is φ = 22040555608.

The previous prime is 22040555599. The next prime is 22040555651. The reversal of 22040555609 is 90655504022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19467225625 + 2573329984 = 139525^2 + 50728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22040555609 is a prime.

It is not a weakly prime, because it can be changed into another prime (22040555699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11020277804 + 11020277805.

It is an arithmetic number, because the mean of its divisors is an integer number (11020277805).

Almost surely, 2^22040555609 is an apocalyptic number.

It is an amenable number.

22040555609 is a deficient number, since it is larger than the sum of its proper divisors (1).

22040555609 is an equidigital number, since it uses as much as digits as its factorization.

22040555609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 22040555609 in words is "twenty-two billion, forty million, five hundred fifty-five thousand, six hundred nine".