22345556659 has 2 divisors, whose sum is σ = 22345556660. Its totient is φ = 22345556658.

The previous prime is 22345556647. The next prime is 22345556677. The reversal of 22345556659 is 95665554322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22345556659 - 2⁵ = 22345556627 is a prime.

It is not a weakly prime, because it can be changed into another prime (22345556159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11172778329 + 11172778330.

It is an arithmetic number, because the mean of its divisors is an integer number (11172778330).

Almost surely, 2^22345556659 is an apocalyptic number.

22345556659 is a deficient number, since it is larger than the sum of its proper divisors (1).

22345556659 is an equidigital number, since it uses as much as digits as its factorization.

22345556659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720000, while the sum is 52.

The spelling of 22345556659 in words is "twenty-two billion, three hundred forty-five million, five hundred fifty-six thousand, six hundred fifty-nine".