3066457221 has 12 divisors (see below), whose sum is σ = 4621906848. Its totient is φ = 1955421864.

The previous prime is 3066457189. The next prime is 3066457241. The reversal of 3066457221 is 1227546603.

3066457221 is a `hidden beast` number, since 3 + 0 + 6 + 64 + 572 + 21 = 666.

3066457221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3066457221 - 2⁵ = 3066457189 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3066457241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7406695 + ... + 7407108.

It is an arithmetic number, because the mean of its divisors is an integer number (385158904).

Almost surely, 2^3066457221 is an apocalyptic number.

It is an amenable number.

3066457221 is a deficient number, since it is larger than the sum of its proper divisors (1555449627).

3066457221 is a wasteful number, since it uses less digits than its factorization.

3066457221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14813832 (or 14813829 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 3066457221 is about 55375.6013150196. The cubic root of 3066457221 is about 1452.8216512203.

The spelling of 3066457221 in words is "three billion, sixty-six million, four hundred fifty-seven thousand, two hundred twenty-one".