6066661 has 2 divisors, whose sum is σ = 6066662. Its totient is φ = 6066660.

The previous prime is 6066659. The next prime is 6066673. The reversal of 6066661 is 1666606.

6066661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5377761 + 688900 = 2319^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 6066661 - 2¹ = 6066659 is a prime.

Together with 6066659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6066611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3033330 + 3033331.

It is an arithmetic number, because the mean of its divisors is an integer number (3033331).

Almost surely, 2^6066661 is an apocalyptic number.

It is an amenable number.

6066661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6066661 is an equidigital number, since it uses as much as digits as its factorization.

6066661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6066661 is about 2463.0592765908. The cubic root of 6066661 is about 182.3825327770.

The spelling of 6066661 in words is "six million, sixty-six thousand, six hundred sixty-one".