5660055657661 has 2 divisors, whose sum is σ = 5660055657662. Its totient is φ = 5660055657660.

The previous prime is 5660055657647. The next prime is 5660055657709. The reversal of 5660055657661 is 1667565500665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5576422488025 + 83633169636 = 2361445^2 + 289194^2 .

It is a cyclic number.

It is not a de Polignac number, because 5660055657661 - 2⁷ = 5660055657533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5660055657596 and 5660055657605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5660055657961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830027828830 + 2830027828831.

It is an arithmetic number, because the mean of its divisors is an integer number (2830027828831).

Almost surely, 2^{5660055657661} is an apocalyptic number.

It is an amenable number.

5660055657661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5660055657661 is an equidigital number, since it uses as much as digits as its factorization.

5660055657661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020000, while the sum is 58.

The spelling of 5660055657661 in words is "five trillion, six hundred sixty billion, fifty-five million, six hundred fifty-seven thousand, six hundred sixty-one".