6416556368 has 10 divisors (see below), whose sum is σ = 12432077994. Its totient is φ = 3208278176.

The previous prime is 6416556319. The next prime is 6416556379. The reversal of 6416556368 is 8636556146.

It can be written as a sum of positive squares in only one way, i.e., 6414728464 + 1827904 = 80092^2 + 1352^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200517371 + ... + 200517402.

Almost surely, 2^6416556368 is an apocalyptic number.

It is an amenable number.

6416556368 is a deficient number, since it is larger than the sum of its proper divisors (6015521626).

6416556368 is a wasteful number, since it uses less digits than its factorization.

6416556368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401034781 (or 401034775 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 50.

The square root of 6416556368 is about 80103.4104642243. The cubic root of 6416556368 is about 1858.2351518029.

The spelling of 6416556368 in words is "six billion, four hundred sixteen million, five hundred fifty-six thousand, three hundred sixty-eight".