1313662661 has 8 divisors (see below), whose sum is σ = 1345362048. Its totient is φ = 1282330000.

The previous prime is 1313662631. The next prime is 1313662711. The reversal of 1313662661 is 1662663131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313662661 - 2¹⁰ = 1313661637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313662631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84425 + ... + 98766.

It is an arithmetic number, because the mean of its divisors is an integer number (168170256).

Almost surely, 2^1313662661 is an apocalyptic number.

It is an amenable number.

1313662661 is a deficient number, since it is larger than the sum of its proper divisors (31699387).

1313662661 is a wasteful number, since it uses less digits than its factorization.

1313662661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183363.

The product of its digits is 23328, while the sum is 35.

The square root of 1313662661 is about 36244.4845597230. The cubic root of 1313662661 is about 1095.2029845474.

The spelling of 1313662661 in words is "one billion, three hundred thirteen million, six hundred sixty-two thousand, six hundred sixty-one".