6615565552 has 20 divisors (see below), whose sum is σ = 12882074800. Its totient is φ = 3291159168.

The previous prime is 6615565529. The next prime is 6615565613. The reversal of 6615565552 is 2555655166.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035693 + ... + 1042060.

It is an arithmetic number, because the mean of its divisors is an integer number (644103740).

Almost surely, 2^6615565552 is an apocalyptic number.

It is an amenable number.

6615565552 is a deficient number, since it is larger than the sum of its proper divisors (6266509248).

6615565552 is a wasteful number, since it uses less digits than its factorization.

6615565552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077960 (or 2077954 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 46.

The square root of 6615565552 is about 81336.1269793442. The cubic root of 6615565552 is about 1877.2509194198.

The spelling of 6615565552 in words is "six billion, six hundred fifteen million, five hundred sixty-five thousand, five hundred fifty-two".