317661966 has 64 divisors (see below), whose sum is σ = 761659200. Its totient is φ = 97763328.

The previous prime is 317661961. The next prime is 317661997. The reversal of 317661966 is 669166713.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317661961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45390 + ... + 51918.

It is an arithmetic number, because the mean of its divisors is an integer number (11900925).

Almost surely, 2^317661966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317661966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380829600).

317661966 is an abundant number, since it is smaller than the sum of its proper divisors (443997234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317661966 is a wasteful number, since it uses less digits than its factorization.

317661966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610 (or 6604 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 317661966 is about 17823.0739772913. The cubic root of 317661966 is about 682.3204792905.

The spelling of 317661966 in words is "three hundred seventeen million, six hundred sixty-one thousand, nine hundred sixty-six".