5631216368 has 20 divisors (see below), whose sum is σ = 10912013640. Its totient is φ = 2815212864.

The previous prime is 5631216361. The next prime is 5631216379. The reversal of 5631216368 is 8636121365.

It is a super-2 number, since 2×5631216368² = 63421195566462222848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631216361) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 117671 + ... + 158457.

It is an arithmetic number, because the mean of its divisors is an integer number (545600682).

Almost surely, 2^5631216368 is an apocalyptic number.

It is an amenable number.

5631216368 is a deficient number, since it is larger than the sum of its proper divisors (5280797272).

5631216368 is a wasteful number, since it uses less digits than its factorization.

5631216368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49424 (or 49418 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 5631216368 is about 75041.4310098095. The cubic root of 5631216368 is about 1779.1015505425.

The spelling of 5631216368 in words is "five billion, six hundred thirty-one million, two hundred sixteen thousand, three hundred sixty-eight".