22656856847 has 2 divisors, whose sum is σ = 22656856848. Its totient is φ = 22656856846.

The previous prime is 22656856843. The next prime is 22656856853. The reversal of 22656856847 is 74865865622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22656856847 - 2² = 22656856843 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22656856843) 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, 11328428423 + 11328428424.

It is an arithmetic number, because the mean of its divisors is an integer number (11328428424).

Almost surely, 2^22656856847 is an apocalyptic number.

22656856847 is a deficient number, since it is larger than the sum of its proper divisors (1).

22656856847 is an equidigital number, since it uses as much as digits as its factorization.

22656856847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38707200, while the sum is 59.

The spelling of 22656856847 in words is "twenty-two billion, six hundred fifty-six million, eight hundred fifty-six thousand, eight hundred forty-seven".