6551316631 has 4 divisors (see below), whose sum is σ = 6551519112. Its totient is φ = 6551114152.

The previous prime is 6551316559. The next prime is 6551316637. The reversal of 6551316631 is 1366131556.

6551316631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6551316631 - 2⁹ = 6551316119 is a prime.

It is a super-2 number, since 2×6551316631² = 85839499199234380322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6551316637) 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, 40600 + ... + 121453.

It is an arithmetic number, because the mean of its divisors is an integer number (1637879778).

Almost surely, 2^6551316631 is an apocalyptic number.

6551316631 is a deficient number, since it is larger than the sum of its proper divisors (202481).

6551316631 is a wasteful number, since it uses less digits than its factorization.

6551316631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202480.

The product of its digits is 48600, while the sum is 37.

The square root of 6551316631 is about 80940.2040459499. The cubic root of 6551316631 is about 1871.1539895976.

The spelling of 6551316631 in words is "six billion, five hundred fifty-one million, three hundred sixteen thousand, six hundred thirty-one".