3301661566 has 16 divisors (see below), whose sum is σ = 5663005056. Its totient is φ = 1414244376.

The previous prime is 3301661549. The next prime is 3301661581. The reversal of 3301661566 is 6651661033.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 35136 + ... + 88531.

It is an arithmetic number, because the mean of its divisors is an integer number (353937816).

Almost surely, 2^3301661566 is an apocalyptic number.

3301661566 is a deficient number, since it is larger than the sum of its proper divisors (2361343490).

3301661566 is a wasteful number, since it uses less digits than its factorization.

3301661566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125583.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 3301661566 is about 57460.0867211319. The cubic root of 3301661566 is about 1489.0553846328.

The spelling of 3301661566 in words is "three billion, three hundred one million, six hundred sixty-one thousand, five hundred sixty-six".