551664362317 has 2 divisors, whose sum is σ = 551664362318. Its totient is φ = 551664362316.

The previous prime is 551664362287. The next prime is 551664362329. The reversal of 551664362317 is 713263466155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 458499619876 + 93164742441 = 677126^2 + 305229^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551664362317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551664362017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275832181158 + 275832181159.

It is an arithmetic number, because the mean of its divisors is an integer number (275832181159).

Almost surely, 2^551664362317 is an apocalyptic number.

It is an amenable number.

551664362317 is a deficient number, since it is larger than the sum of its proper divisors (1).

551664362317 is an equidigital number, since it uses as much as digits as its factorization.

551664362317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 49.

The spelling of 551664362317 in words is "five hundred fifty-one billion, six hundred sixty-four million, three hundred sixty-two thousand, three hundred seventeen".