6639116 has 12 divisors (see below), whose sum is σ = 12674760. Its totient is φ = 3017760.

The previous prime is 6639109. The next prime is 6639119. The reversal of 6639116 is 6119366.

It is a super-2 number, since 2×6639116² = 88155722522912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6639119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75401 + ... + 75488.

It is an arithmetic number, because the mean of its divisors is an integer number (1056230).

Almost surely, 2^6639116 is an apocalyptic number.

It is an amenable number.

6639116 is a deficient number, since it is larger than the sum of its proper divisors (6035644).

6639116 is a wasteful number, since it uses less digits than its factorization.

6639116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150904 (or 150902 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 6639116 is about 2576.6482103694. The cubic root of 6639116 is about 187.9475861128.

It can be divided in two parts, 663 and 9116, that added together give a palindrome (9779).

The spelling of 6639116 in words is "six million, six hundred thirty-nine thousand, one hundred sixteen".