611115620861159 has 2 divisors, whose sum is σ = 611115620861160. Its totient is φ = 611115620861158.

The previous prime is 611115620861071. The next prime is 611115620861167. The reversal of 611115620861159 is 951168026511116.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611115620861159 - 2⁸ = 611115620860903 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611115620861159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611115625861159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305557810430579 + 305557810430580.

It is an arithmetic number, because the mean of its divisors is an integer number (305557810430580).

Almost surely, 2^{611115620861159} is an apocalyptic number.

611115620861159 is a deficient number, since it is larger than the sum of its proper divisors (1).

611115620861159 is an equidigital number, since it uses as much as digits as its factorization.

611115620861159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 53.

The spelling of 611115620861159 in words is "six hundred eleven trillion, one hundred fifteen billion, six hundred twenty million, eight hundred sixty-one thousand, one hundred fifty-nine".