3666481128 has 48 divisors (see below), whose sum is σ = 10092852900. Its totient is φ = 1202123520.

The previous prime is 3666481127. The next prime is 3666481141. The reversal of 3666481128 is 8211846663.

3666481128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3196545444 + 469935684 = 56538^2 + 21678^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3666481123) 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, 413013 + ... + 421796.

Almost surely, 2^3666481128 is an apocalyptic number.

It is an amenable number.

3666481128 is an abundant number, since it is smaller than the sum of its proper divisors (6426371772).

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

3666481128 is a wasteful number, since it uses less digits than its factorization.

3666481128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834882 (or 834875 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 3666481128 is about 60551.4750274508. The cubic root of 3666481128 is about 1541.9956597757.

The spelling of 3666481128 in words is "three billion, six hundred sixty-six million, four hundred eighty-one thousand, one hundred twenty-eight".