22099766657 has 2 divisors, whose sum is σ = 22099766658. Its totient is φ = 22099766656.

The previous prime is 22099766597. The next prime is 22099766681. The reversal of 22099766657 is 75666799022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14872046401 + 7227720256 = 121951^2 + 85016^2 .

It is a cyclic number.

It is not a de Polignac number, because 22099766657 - 2²² = 22095572353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22099766596 and 22099766605.

It is not a weakly prime, because it can be changed into another prime (22099763657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11049883328 + 11049883329.

It is an arithmetic number, because the mean of its divisors is an integer number (11049883329).

Almost surely, 2^22099766657 is an apocalyptic number.

It is an amenable number.

22099766657 is a deficient number, since it is larger than the sum of its proper divisors (1).

22099766657 is an equidigital number, since it uses as much as digits as its factorization.

22099766657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 22099766657 in words is "twenty-two billion, ninety-nine million, seven hundred sixty-six thousand, six hundred fifty-seven".