1113660565 has 8 divisors (see below), whose sum is σ = 1415004120. Its totient is φ = 838520832.

The previous prime is 1113660557. The next prime is 1113660571. The reversal of 1113660565 is 5650663111.

It can be written as a sum of positive squares in 4 ways, for example, as 17322244 + 1096338321 = 4162^2 + 33111^2 .

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 1113660565 - 2³ = 1113660557 is a prime.

It is a super-2 number, since 2×1113660565² = 2480479708072238450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1113660565.

It is a congruent number.

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, 6550860 + ... + 6551029.

It is an arithmetic number, because the mean of its divisors is an integer number (176875515).

Almost surely, 2^1113660565 is an apocalyptic number.

It is an amenable number.

1113660565 is a deficient number, since it is larger than the sum of its proper divisors (301343555).

1113660565 is a wasteful number, since it uses less digits than its factorization.

1113660565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13101911.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1113660565 is about 33371.5532302589. The cubic root of 1113660565 is about 1036.5357381383.

The spelling of 1113660565 in words is "one billion, one hundred thirteen million, six hundred sixty thousand, five hundred sixty-five".