2066849061 has 4 divisors (see below), whose sum is σ = 2755798752. Its totient is φ = 1377899372.

The previous prime is 2066849039. The next prime is 2066849063. The reversal of 2066849061 is 1609486602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2066849061 - 2⁶ = 2066848997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066849063) 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 in 3 ways as a sum of consecutive naturals, for example, 344474841 + ... + 344474846.

It is an arithmetic number, because the mean of its divisors is an integer number (688949688).

Almost surely, 2^2066849061 is an apocalyptic number.

It is an amenable number.

2066849061 is a deficient number, since it is larger than the sum of its proper divisors (688949691).

2066849061 is an equidigital number, since it uses as much as digits as its factorization.

2066849061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688949690.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2066849061 is about 45462.6116825683. The cubic root of 2066849061 is about 1273.8049160053.

The spelling of 2066849061 in words is "two billion, sixty-six million, eight hundred forty-nine thousand, sixty-one".