57208966163737 has 2 divisors, whose sum is σ = 57208966163738. Its totient is φ = 57208966163736.

The previous prime is 57208966163681. The next prime is 57208966163743. The reversal of 57208966163737 is 73736166980275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31520095004176 + 25688871159561 = 5614276^2 + 5068419^2 .

It is a cyclic number.

It is not a de Polignac number, because 57208966163737 - 2¹¹ = 57208966161689 is a prime.

It is not a weakly prime, because it can be changed into another prime (57208966169737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28604483081868 + 28604483081869.

It is an arithmetic number, because the mean of its divisors is an integer number (28604483081869).

Almost surely, 2^{57208966163737} is an apocalyptic number.

It is an amenable number.

57208966163737 is a deficient number, since it is larger than the sum of its proper divisors (1).

57208966163737 is an equidigital number, since it uses as much as digits as its factorization.

57208966163737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480090240, while the sum is 70.

The spelling of 57208966163737 in words is "fifty-seven trillion, two hundred eight billion, nine hundred sixty-six million, one hundred sixty-three thousand, seven hundred thirty-seven".