2680660565 has 16 divisors (see below), whose sum is σ = 3594822336. Its totient is φ = 1902019200.

The previous prime is 2680660537. The next prime is 2680660571. The reversal of 2680660565 is 5650660862.

It is a happy number.

It is not a de Polignac number, because 2680660565 - 2¹² = 2680656469 is a prime.

It is a super-2 number, since 2×2680660565² = 14371882129492238450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592127 + ... + 596636.

It is an arithmetic number, because the mean of its divisors is an integer number (224676396).

Almost surely, 2^2680660565 is an apocalyptic number.

It is an amenable number.

2680660565 is a deficient number, since it is larger than the sum of its proper divisors (914161771).

2680660565 is a wasteful number, since it uses less digits than its factorization.

2680660565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188820.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 2680660565 is about 51775.0959921853. The cubic root of 2680660565 is about 1389.1440246872.

The spelling of 2680660565 in words is "two billion, six hundred eighty million, six hundred sixty thousand, five hundred sixty-five".