3581642116 has 12 divisors (see below), whose sum is σ = 6750017932. Its totient is φ = 1653065568.

The previous prime is 3581642111. The next prime is 3581642117. The reversal of 3581642116 is 6112461853.

It is a happy number.

3581642116 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 206496900 + 3375145216 = 14370^2 + 58096^2 .

It is not an unprimeable number, because it can be changed into a prime (3581642111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34438815 + ... + 34438918.

Almost surely, 2^3581642116 is an apocalyptic number.

It is an amenable number.

3581642116 is a deficient number, since it is larger than the sum of its proper divisors (3168375816).

3581642116 is a wasteful number, since it uses less digits than its factorization.

3581642116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68877750 (or 68877748 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 3581642116 is about 59846.8221044359. The cubic root of 3581642116 is about 1530.0092721610.

The spelling of 3581642116 in words is "three billion, five hundred eighty-one million, six hundred forty-two thousand, one hundred sixteen".