117446636557 has 2 divisors, whose sum is σ = 117446636558. Its totient is φ = 117446636556.

The previous prime is 117446636479. The next prime is 117446636579. The reversal of 117446636557 is 755636644711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98829125641 + 18617510916 = 314371^2 + 136446^2 .

It is a cyclic number.

It is not a de Polignac number, because 117446636557 - 2¹¹ = 117446634509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117446636498 and 117446636507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117446630557) 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, 58723318278 + 58723318279.

It is an arithmetic number, because the mean of its divisors is an integer number (58723318279).

Almost surely, 2^117446636557 is an apocalyptic number.

It is an amenable number.

117446636557 is a deficient number, since it is larger than the sum of its proper divisors (1).

117446636557 is an equidigital number, since it uses as much as digits as its factorization.

117446636557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12700800, while the sum is 55.

The spelling of 117446636557 in words is "one hundred seventeen billion, four hundred forty-six million, six hundred thirty-six thousand, five hundred fifty-seven".