3966255128 has 24 divisors (see below), whose sum is σ = 8174257140. Its totient is φ = 1802842800.

The previous prime is 3966255127. The next prime is 3966255157. The reversal of 3966255128 is 8215526693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966255127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2047718 + ... + 2049653.

Almost surely, 2^3966255128 is an apocalyptic number.

It is an amenable number.

3966255128 is an abundant number, since it is smaller than the sum of its proper divisors (4208002012).

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

3966255128 is a wasteful number, since it uses less digits than its factorization.

3966255128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097399 (or 4097384 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 3966255128 is about 62978.2115338313. The cubic root of 3966255128 is about 1582.9245529189.

The spelling of 3966255128 in words is "three billion, nine hundred sixty-six million, two hundred fifty-five thousand, one hundred twenty-eight".