6625564216 has 16 divisors (see below), whose sum is σ = 12431647800. Its totient is φ = 3310458144.

The previous prime is 6625564201. The next prime is 6625564217. The reversal of 6625564216 is 6124655266.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6625564217) 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, 278350 + ... + 301213.

Almost surely, 2^6625564216 is an apocalyptic number.

It is an amenable number.

6625564216 is a deficient number, since it is larger than the sum of its proper divisors (5806083584).

6625564216 is a wasteful number, since it uses less digits than its factorization.

6625564216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580998 (or 580994 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 6625564216 is about 81397.5688580439. The cubic root of 6625564216 is about 1878.1961927423.

The spelling of 6625564216 in words is "six billion, six hundred twenty-five million, five hundred sixty-four thousand, two hundred sixteen".