6680606693 has 2 divisors, whose sum is σ = 6680606694. Its totient is φ = 6680606692.

The previous prime is 6680606687. The next prime is 6680606717. The reversal of 6680606693 is 3966060866.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6679302529 + 1304164 = 81727^2 + 1142^2 .

It is a cyclic number.

It is not a de Polignac number, because 6680606693 - 2⁶ = 6680606629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6680606633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340303346 + 3340303347.

It is an arithmetic number, because the mean of its divisors is an integer number (3340303347).

Almost surely, 2^6680606693 is an apocalyptic number.

It is an amenable number.

6680606693 is a deficient number, since it is larger than the sum of its proper divisors (1).

6680606693 is an equidigital number, since it uses as much as digits as its factorization.

6680606693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The square root of 6680606693 is about 81734.9783935862. The cubic root of 6680606693 is about 1883.3829511941.

The spelling of 6680606693 in words is "six billion, six hundred eighty million, six hundred six thousand, six hundred ninety-three".