6616223212 has 12 divisors (see below), whose sum is σ = 11977645680. Its totient is φ = 3194038736.

The previous prime is 6616223203. The next prime is 6616223221. The reversal of 6616223212 is 2123226166.

It is an interprime number because it is at equal distance from previous prime (6616223203) and next prime (6616223221).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28518088 + ... + 28518319.

It is an arithmetic number, because the mean of its divisors is an integer number (998137140).

Almost surely, 2^6616223212 is an apocalyptic number.

It is an amenable number.

6616223212 is a deficient number, since it is larger than the sum of its proper divisors (5361422468).

6616223212 is a wasteful number, since it uses less digits than its factorization.

6616223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57036440 (or 57036438 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 6616223212 is about 81340.1697318121. The cubic root of 6616223212 is about 1877.3131238235.

Adding to 6616223212 its reverse (2123226166), we get a palindrome (8739449378).

The spelling of 6616223212 in words is "six billion, six hundred sixteen million, two hundred twenty-three thousand, two hundred twelve".