6635536216 has 16 divisors (see below), whose sum is σ = 12442815000. Its totient is φ = 3317452224.

The previous prime is 6635536213. The next prime is 6635536223. The reversal of 6635536216 is 6126355366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6635536213) 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, 66535 + ... + 133033.

Almost surely, 2^6635536216 is an apocalyptic number.

It is an amenable number.

6635536216 is a deficient number, since it is larger than the sum of its proper divisors (5807278784).

6635536216 is a wasteful number, since it uses less digits than its factorization.

6635536216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78978 (or 78974 counting only the distinct ones).

The product of its digits is 583200, while the sum is 43.

The square root of 6635536216 is about 81458.8007277298. The cubic root of 6635536216 is about 1879.1379985153.

The spelling of 6635536216 in words is "six billion, six hundred thirty-five million, five hundred thirty-six thousand, two hundred sixteen".