655710516641 has 2 divisors, whose sum is σ = 655710516642. Its totient is φ = 655710516640.

The previous prime is 655710516613. The next prime is 655710516647. The reversal of 655710516641 is 146615017556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498018135616 + 157692381025 = 705704^2 + 397105^2 .

It is a cyclic number.

It is not a de Polignac number, because 655710516641 - 2¹⁴ = 655710500257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (655710516647) 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, 327855258320 + 327855258321.

It is an arithmetic number, because the mean of its divisors is an integer number (327855258321).

Almost surely, 2^655710516641 is an apocalyptic number.

It is an amenable number.

655710516641 is a deficient number, since it is larger than the sum of its proper divisors (1).

655710516641 is an equidigital number, since it uses as much as digits as its factorization.

655710516641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 655710516641 in words is "six hundred fifty-five billion, seven hundred ten million, five hundred sixteen thousand, six hundred forty-one".