656050061617 has 2 divisors, whose sum is σ = 656050061618. Its totient is φ = 656050061616.

The previous prime is 656050061599. The next prime is 656050061657. The reversal of 656050061617 is 716160050656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387426574096 + 268623487521 = 622436^2 + 518289^2 .

It is a cyclic number.

It is not a de Polignac number, because 656050061617 - 2¹⁵ = 656050028849 is a prime.

It is not a weakly prime, because it can be changed into another prime (656050061657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328025030808 + 328025030809.

It is an arithmetic number, because the mean of its divisors is an integer number (328025030809).

Almost surely, 2^656050061617 is an apocalyptic number.

It is an amenable number.

656050061617 is a deficient number, since it is larger than the sum of its proper divisors (1).

656050061617 is an equidigital number, since it uses as much as digits as its factorization.

656050061617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 656050061617 in words is "six hundred fifty-six billion, fifty million, sixty-one thousand, six hundred seventeen".