6445113416 has 32 divisors (see below), whose sum is σ = 13813536000. Its totient is φ = 2761675776.

The previous prime is 6445113407. The next prime is 6445113419. The reversal of 6445113416 is 6143115446.

It is not an unprimeable number, because it can be changed into a prime (6445113419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563240 + ... + 574568.

It is an arithmetic number, because the mean of its divisors is an integer number (431673000).

Almost surely, 2^6445113416 is an apocalyptic number.

It is an amenable number.

6445113416 is an abundant number, since it is smaller than the sum of its proper divisors (7368422584).

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

6445113416 is a wasteful number, since it uses less digits than its factorization.

6445113416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21501 (or 21497 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 6445113416 is about 80281.4637136120. The cubic root of 6445113416 is about 1860.9877799532.

The spelling of 6445113416 in words is "six billion, four hundred forty-five million, one hundred thirteen thousand, four hundred sixteen".