6643617232 has 20 divisors (see below), whose sum is σ = 14710866976. Its totient is φ = 2847264480.

The previous prime is 6643617217. The next prime is 6643617247. The reversal of 6643617232 is 2327163466.

It is an interprime number because it is at equal distance from previous prime (6643617217) and next prime (6643617247).

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 in 3 ways as a sum of consecutive naturals, for example, 29658894 + ... + 29659117.

Almost surely, 2^6643617232 is an apocalyptic number.

It is an amenable number.

6643617232 is an abundant number, since it is smaller than the sum of its proper divisors (8067249744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6643617232 is a wasteful number, since it uses less digits than its factorization.

6643617232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59318026 (or 59318020 counting only the distinct ones).

The product of its digits is 217728, while the sum is 40.

The square root of 6643617232 is about 81508.3874947849. The cubic root of 6643617232 is about 1879.9005183515.

The spelling of 6643617232 in words is "six billion, six hundred forty-three million, six hundred seventeen thousand, two hundred thirty-two".