6641611712 has 14 divisors (see below), whose sum is σ = 13179448368. Its totient is φ = 3320805824.

The previous prime is 6641611699. The next prime is 6641611727. The reversal of 6641611712 is 2171161466.

It is a super-2 number, since 2×6641611712² = 88222012265951141888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51887528 + ... + 51887655.

Almost surely, 2^6641611712 is an apocalyptic number.

It is an amenable number.

6641611712 is a deficient number, since it is larger than the sum of its proper divisors (6537836656).

6641611712 is a wasteful number, since it uses less digits than its factorization.

6641611712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103775195 (or 103775185 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 6641611712 is about 81496.0840286207. The cubic root of 6641611712 is about 1879.7113363948.

The spelling of 6641611712 in words is "six billion, six hundred forty-one million, six hundred eleven thousand, seven hundred twelve".