1317450660 has 24 divisors (see below), whose sum is σ = 3688862016. Its totient is φ = 351320160.

The previous prime is 1317450647. The next prime is 1317450691. The reversal of 1317450660 is 660547131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10978696 + ... + 10978815.

It is an arithmetic number, because the mean of its divisors is an integer number (153702584).

Almost surely, 2^1317450660 is an apocalyptic number.

1317450660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317450660 is an abundant number, since it is smaller than the sum of its proper divisors (2371411356).

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

1317450660 is a wasteful number, since it uses less digits than its factorization.

1317450660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21957523 (or 21957521 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1317450660 is about 36296.7031560719. The cubic root of 1317450660 is about 1096.2546615952.

Adding to 1317450660 its reverse (660547131), we get a palindrome (1977997791).

The spelling of 1317450660 in words is "one billion, three hundred seventeen million, four hundred fifty thousand, six hundred sixty".