2006120839549 has 2 divisors, whose sum is σ = 2006120839550. Its totient is φ = 2006120839548.

The previous prime is 2006120839487. The next prime is 2006120839589. The reversal of 2006120839549 is 9459380216002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1663055264025 + 343065575524 = 1289595^2 + 585718^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006120839549 - 2³⁵ = 1971761101181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006120839589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003060419774 + 1003060419775.

It is an arithmetic number, because the mean of its divisors is an integer number (1003060419775).

Almost surely, 2^{2006120839549} is an apocalyptic number.

It is an amenable number.

2006120839549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006120839549 is an equidigital number, since it uses as much as digits as its factorization.

2006120839549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 2006120839549 in words is "two trillion, six billion, one hundred twenty million, eight hundred thirty-nine thousand, five hundred forty-nine".