3066913981 has 2 divisors, whose sum is σ = 3066913982. Its totient is φ = 3066913980.

The previous prime is 3066913973. The next prime is 3066913991. The reversal of 3066913981 is 1893196603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2137212900 + 929701081 = 46230^2 + 30491^2 .

It is a cyclic number.

It is not a de Polignac number, because 3066913981 - 2³ = 3066913973 is a prime.

It is a super-2 number, since 2×3066913981² = 18811922733706536722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3066913961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1533456990 + 1533456991.

It is an arithmetic number, because the mean of its divisors is an integer number (1533456991).

Almost surely, 2^3066913981 is an apocalyptic number.

It is an amenable number.

3066913981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3066913981 is an equidigital number, since it uses as much as digits as its factorization.

3066913981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 3066913981 is about 55379.7253604602. The cubic root of 3066913981 is about 1452.8937820023.

The spelling of 3066913981 in words is "three billion, sixty-six million, nine hundred thirteen thousand, nine hundred eighty-one".