65663701417 has 2 divisors, whose sum is σ = 65663701418. Its totient is φ = 65663701416.

The previous prime is 65663701409. The next prime is 65663701423. The reversal of 65663701417 is 71410736656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59455994896 + 6207706521 = 243836^2 + 78789^2 .

It is a cyclic number.

It is not a de Polignac number, because 65663701417 - 2³ = 65663701409 is a prime.

It is not a weakly prime, because it can be changed into another prime (65663701447) 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, 32831850708 + 32831850709.

It is an arithmetic number, because the mean of its divisors is an integer number (32831850709).

Almost surely, 2^65663701417 is an apocalyptic number.

It is an amenable number.

65663701417 is a deficient number, since it is larger than the sum of its proper divisors (1).

65663701417 is an equidigital number, since it uses as much as digits as its factorization.

65663701417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 65663701417 in words is "sixty-five billion, six hundred sixty-three million, seven hundred one thousand, four hundred seventeen".