22366556851 has 2 divisors, whose sum is σ = 22366556852. Its totient is φ = 22366556850.

The previous prime is 22366556833. The next prime is 22366556881. The reversal of 22366556851 is 15865566322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22366556851 - 2¹¹ = 22366554803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22366556795 and 22366556804.

It is not a weakly prime, because it can be changed into another prime (22366556831) 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, 11183278425 + 11183278426.

It is an arithmetic number, because the mean of its divisors is an integer number (11183278426).

Almost surely, 2^22366556851 is an apocalyptic number.

22366556851 is a deficient number, since it is larger than the sum of its proper divisors (1).

22366556851 is an equidigital number, since it uses as much as digits as its factorization.

22366556851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592000, while the sum is 49.

The spelling of 22366556851 in words is "twenty-two billion, three hundred sixty-six million, five hundred fifty-six thousand, eight hundred fifty-one".