65617076417 has 2 divisors, whose sum is σ = 65617076418. Its totient is φ = 65617076416.

The previous prime is 65617076363. The next prime is 65617076449. The reversal of 65617076417 is 71467071656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51797663281 + 13819413136 = 227591^2 + 117556^2 .

It is a cyclic number.

It is not a de Polignac number, because 65617076417 - 2¹² = 65617072321 is a prime.

It is not a weakly prime, because it can be changed into another prime (65617076467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32808538208 + 32808538209.

It is an arithmetic number, because the mean of its divisors is an integer number (32808538209).

Almost surely, 2^65617076417 is an apocalyptic number.

It is an amenable number.

65617076417 is a deficient number, since it is larger than the sum of its proper divisors (1).

65617076417 is an equidigital number, since it uses as much as digits as its factorization.

65617076417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 50.

The spelling of 65617076417 in words is "sixty-five billion, six hundred seventeen million, seventy-six thousand, four hundred seventeen".