44555666317 has 2 divisors, whose sum is σ = 44555666318. Its totient is φ = 44555666316.

The previous prime is 44555666303. The next prime is 44555666371. The reversal of 44555666317 is 71366655544.

Together with next prime (44555666371) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44400389796 + 155276521 = 210714^2 + 12461^2 .

It is a cyclic number.

It is not a de Polignac number, because 44555666317 - 2³¹ = 42408182669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44555666417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22277833158 + 22277833159.

It is an arithmetic number, because the mean of its divisors is an integer number (22277833159).

Almost surely, 2^44555666317 is an apocalyptic number.

It is an amenable number.

44555666317 is a deficient number, since it is larger than the sum of its proper divisors (1).

44555666317 is an equidigital number, since it uses as much as digits as its factorization.

44555666317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072000, while the sum is 52.

The spelling of 44555666317 in words is "forty-four billion, five hundred fifty-five million, six hundred sixty-six thousand, three hundred seventeen".