5631331366 has 4 divisors (see below), whose sum is σ = 8446997052. Its totient is φ = 2815665682.

The previous prime is 5631331351. The next prime is 5631331403. The reversal of 5631331366 is 6631331365.

It is a semiprime because it is the product of two primes.

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, 1407832840 + ... + 1407832843.

It is an arithmetic number, because the mean of its divisors is an integer number (2111749263).

Almost surely, 2^5631331366 is an apocalyptic number.

5631331366 is a deficient number, since it is larger than the sum of its proper divisors (2815665686).

5631331366 is a wasteful number, since it uses less digits than its factorization.

5631331366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815665685.

The product of its digits is 87480, while the sum is 37.

The square root of 5631331366 is about 75042.1972359552. The cubic root of 5631331366 is about 1779.1136611129.

Subtracting 5631331366 from its reverse (6631331365), we obtain a palindrome (999999999).

The spelling of 5631331366 in words is "five billion, six hundred thirty-one million, three hundred thirty-one thousand, three hundred sixty-six".