6616131 has 8 divisors (see below), whose sum is σ = 8904384. Its totient is φ = 4369320.

The previous prime is 6616117. The next prime is 6616139. The reversal of 6616131 is 1316166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6616131 - 2⁷ = 6616003 is a prime.

It is a super-2 number, since 2×6616131² = 87546378818322, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9985 + ... + 10626.

It is an arithmetic number, because the mean of its divisors is an integer number (1113048).

Almost surely, 2^6616131 is an apocalyptic number.

6616131 is a deficient number, since it is larger than the sum of its proper divisors (2288253).

6616131 is a wasteful number, since it uses less digits than its factorization.

6616131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20721.

The product of its digits is 648, while the sum is 24.

The square root of 6616131 is about 2572.1840913900. The cubic root of 6616131 is about 187.7304402251.

The spelling of 6616131 in words is "six million, six hundred sixteen thousand, one hundred thirty-one".