611115620857141 has 2 divisors, whose sum is σ = 611115620857142. Its totient is φ = 611115620857140.

The previous prime is 611115620857127. The next prime is 611115620857163. The reversal of 611115620857141 is 141758026511116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 473674090043025 + 137441530814116 = 21764055^2 + 11723546^2 .

It is a cyclic number.

It is not a de Polignac number, because 611115620857141 - 2²⁵ = 611115587302709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611115620057141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305557810428570 + 305557810428571.

It is an arithmetic number, because the mean of its divisors is an integer number (305557810428571).

Almost surely, 2^{611115620857141} is an apocalyptic number.

It is an amenable number.

611115620857141 is a deficient number, since it is larger than the sum of its proper divisors (1).

611115620857141 is an equidigital number, since it uses as much as digits as its factorization.

611115620857141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 49.

The spelling of 611115620857141 in words is "six hundred eleven trillion, one hundred fifteen billion, six hundred twenty million, eight hundred fifty-seven thousand, one hundred forty-one".