8192228386561 has 2 divisors, whose sum is σ = 8192228386562. Its totient is φ = 8192228386560.

The previous prime is 8192228386553. The next prime is 8192228386591. The reversal of 8192228386561 is 1656838222918.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6201394867600 + 1990833518961 = 2490260^2 + 1410969^2 .

It is a cyclic number.

It is not a de Polignac number, because 8192228386561 - 2³ = 8192228386553 is a prime.

It is a super-2 number, since 2×8192228386561² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8192228386561.

It is not a weakly prime, because it can be changed into another prime (8192228386591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4096114193280 + 4096114193281.

It is an arithmetic number, because the mean of its divisors is an integer number (4096114193281).

Almost surely, 2^{8192228386561} is an apocalyptic number.

It is an amenable number.

8192228386561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8192228386561 is an equidigital number, since it uses as much as digits as its factorization.

8192228386561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19906560, while the sum is 61.

The spelling of 8192228386561 in words is "eight trillion, one hundred ninety-two billion, two hundred twenty-eight million, three hundred eighty-six thousand, five hundred sixty-one".