3116661388 has 12 divisors (see below), whose sum is σ = 5457821040. Its totient is φ = 1557283952.

The previous prime is 3116661347. The next prime is 3116661389. The reversal of 3116661388 is 8831666113.

3116661388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3116661389) 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, 254968 + ... + 266911.

It is an arithmetic number, because the mean of its divisors is an integer number (454818420).

Almost surely, 2^3116661388 is an apocalyptic number.

It is an amenable number.

3116661388 is a deficient number, since it is larger than the sum of its proper divisors (2341159652).

3116661388 is a wasteful number, since it uses less digits than its factorization.

3116661388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523376 (or 523374 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 3116661388 is about 55827.0668045528. The cubic root of 3116661388 is about 1460.7073241227.

The spelling of 3116661388 in words is "three billion, one hundred sixteen million, six hundred sixty-one thousand, three hundred eighty-eight".