1317607664 has 20 divisors (see below), whose sum is σ = 2557600440. Its totient is φ = 657581760.

The previous prime is 1317607639. The next prime is 1317607673. The reversal of 1317607664 is 4667067131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67454 + ... + 84765.

It is an arithmetic number, because the mean of its divisors is an integer number (127880022).

Almost surely, 2^1317607664 is an apocalyptic number.

It is an amenable number.

1317607664 is a deficient number, since it is larger than the sum of its proper divisors (1239992776).

1317607664 is a wasteful number, since it uses less digits than its factorization.

1317607664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152768 (or 152762 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 1317607664 is about 36298.8658776001. The cubic root of 1317607664 is about 1096.2982076992.

The spelling of 1317607664 in words is "one billion, three hundred seventeen million, six hundred seven thousand, six hundred sixty-four".