3966565416 has 32 divisors (see below), whose sum is σ = 10817906400. Its totient is φ = 1201989440.

The previous prime is 3966565411. The next prime is 3966565417. The reversal of 3966565416 is 6145656693.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3966565411) 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 7 ways as a sum of consecutive naturals, for example, 7512171 + ... + 7512698.

It is an arithmetic number, because the mean of its divisors is an integer number (338059575).

Almost surely, 2^3966565416 is an apocalyptic number.

It is an amenable number.

3966565416 is an abundant number, since it is smaller than the sum of its proper divisors (6851340984).

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

3966565416 is a wasteful number, since it uses less digits than its factorization.

3966565416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15024889 (or 15024885 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 51.

The square root of 3966565416 is about 62980.6749408102. The cubic root of 3966565416 is about 1582.9658302842.

The spelling of 3966565416 in words is "three billion, nine hundred sixty-six million, five hundred sixty-five thousand, four hundred sixteen".