5660621102709 has 12 divisors (see below), whose sum is σ = 8194344291276. Its totient is φ = 3765489746112.

The previous prime is 5660621102699. The next prime is 5660621102711. The reversal of 5660621102709 is 9072011260665.

5660621102709 is a `hidden beast` number, since 5 + 6 + 6 + 0 + 621 + 10 + 2 + 7 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3019524831684 + 2641096271025 = 1737678^2 + 1625145^2 .

It is not a de Polignac number, because 5660621102709 - 2⁷ = 5660621102581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5660621102209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688133634 + ... + 688141859.

It is an arithmetic number, because the mean of its divisors is an integer number (682862024273).

Almost surely, 2^{5660621102709} is an apocalyptic number.

It is an amenable number.

5660621102709 is a deficient number, since it is larger than the sum of its proper divisors (2533723188567).

5660621102709 is a wasteful number, since it uses less digits than its factorization.

5660621102709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376275956 (or 1376275953 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 5660621102709 in words is "five trillion, six hundred sixty billion, six hundred twenty-one million, one hundred two thousand, seven hundred nine".