61057206810559 has 2 divisors, whose sum is σ = 61057206810560. Its totient is φ = 61057206810558.

The previous prime is 61057206810547. The next prime is 61057206810631. The reversal of 61057206810559 is 95501860275016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61057206810559 - 2¹¹ = 61057206808511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61057206810359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30528603405279 + 30528603405280.

It is an arithmetic number, because the mean of its divisors is an integer number (30528603405280).

Almost surely, 2^{61057206810559} is an apocalyptic number.

61057206810559 is a deficient number, since it is larger than the sum of its proper divisors (1).

61057206810559 is an equidigital number, since it uses as much as digits as its factorization.

61057206810559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 55.

The spelling of 61057206810559 in words is "sixty-one trillion, fifty-seven billion, two hundred six million, eight hundred ten thousand, five hundred fifty-nine".