2066487541 has 2 divisors, whose sum is σ = 2066487542. Its totient is φ = 2066487540.

The previous prime is 2066487523. The next prime is 2066487569. The reversal of 2066487541 is 1457846602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1658851441 + 407636100 = 40729^2 + 20190^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066487541 - 2¹⁹ = 2065963253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2066487641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033243770 + 1033243771.

It is an arithmetic number, because the mean of its divisors is an integer number (1033243771).

Almost surely, 2^2066487541 is an apocalyptic number.

It is an amenable number.

2066487541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066487541 is an equidigital number, since it uses as much as digits as its factorization.

2066487541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 2066487541 is about 45458.6354942601. The cubic root of 2066487541 is about 1273.7306430755.

The spelling of 2066487541 in words is "two billion, sixty-six million, four hundred eighty-seven thousand, five hundred forty-one".