6443113556 has 48 divisors (see below), whose sum is σ = 12863950848. Its totient is φ = 2795100000.

The previous prime is 6443113531. The next prime is 6443113559. The reversal of 6443113556 is 6553113446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443113559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461681 + ... + 475431.

It is an arithmetic number, because the mean of its divisors is an integer number (267998976).

Almost surely, 2^6443113556 is an apocalyptic number.

It is an amenable number.

6443113556 is a deficient number, since it is larger than the sum of its proper divisors (6420837292).

6443113556 is a wasteful number, since it uses less digits than its factorization.

6443113556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14252 (or 14250 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 6443113556 is about 80269.0074437201. The cubic root of 6443113556 is about 1860.7952775210.

The spelling of 6443113556 in words is "six billion, four hundred forty-three million, one hundred thirteen thousand, five hundred fifty-six".