566121377 has 2 divisors, whose sum is σ = 566121378. Its totient is φ = 566121376.

The previous prime is 566121329. The next prime is 566121421. The reversal of 566121377 is 773121665.

566121377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366492736 + 199628641 = 19144^2 + 14129^2 .

It is a cyclic number.

It is not a de Polignac number, because 566121377 - 2⁶ = 566121313 is a prime.

It is a super-2 number, since 2×566121377² = 640986826992752258, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 566121377.

It is not a weakly prime, because it can be changed into another prime (566121077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283060688 + 283060689.

It is an arithmetic number, because the mean of its divisors is an integer number (283060689).

Almost surely, 2^566121377 is an apocalyptic number.

It is an amenable number.

566121377 is a deficient number, since it is larger than the sum of its proper divisors (1).

566121377 is an equidigital number, since it uses as much as digits as its factorization.

566121377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 566121377 is about 23793.3052979194. The cubic root of 566121377 is about 827.2495091013.

The spelling of 566121377 in words is "five hundred sixty-six million, one hundred twenty-one thousand, three hundred seventy-seven".