3066681620 has 24 divisors (see below), whose sum is σ = 6466763688. Its totient is φ = 1221580800.

The previous prime is 3066681617. The next prime is 3066681623. The reversal of 3066681620 is 261866603.

3066681620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3066681617) and next prime (3066681623).

It can be written as a sum of positive squares in 4 ways, for example, as 374732164 + 2691949456 = 19358^2 + 51884^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3066681623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313301 + ... + 322940.

It is an arithmetic number, because the mean of its divisors is an integer number (269448487).

Almost surely, 2^3066681620 is an apocalyptic number.

It is an amenable number.

3066681620 is an abundant number, since it is smaller than the sum of its proper divisors (3400082068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3066681620 is a wasteful number, since it uses less digits than its factorization.

3066681620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636491 (or 636489 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 3066681620 is about 55377.6274320235. The cubic root of 3066681620 is about 1452.8570888334.

The spelling of 3066681620 in words is "three billion, sixty-six million, six hundred eighty-one thousand, six hundred twenty".