5157859006661 has 2 divisors, whose sum is σ = 5157859006662. Its totient is φ = 5157859006660.

The previous prime is 5157859006639. The next prime is 5157859006673. The reversal of 5157859006661 is 1666009587515.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2714483609761 + 2443375396900 = 1647569^2 + 1563130^2 .

It is a cyclic number.

It is not a de Polignac number, because 5157859006661 - 2³⁰ = 5156785264837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5157859006661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5157859006561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578929503330 + 2578929503331.

It is an arithmetic number, because the mean of its divisors is an integer number (2578929503331).

Almost surely, 2^{5157859006661} is an apocalyptic number.

It is an amenable number.

5157859006661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5157859006661 is an equidigital number, since it uses as much as digits as its factorization.

5157859006661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608000, while the sum is 59.

The spelling of 5157859006661 in words is "five trillion, one hundred fifty-seven billion, eight hundred fifty-nine million, six thousand, six hundred sixty-one".