6615448416 has 96 divisors (see below), whose sum is σ = 20134033920. Its totient is φ = 2109267072.

The previous prime is 6615448373. The next prime is 6615448417. The reversal of 6615448416 is 6148445166.

6615448416 is a `hidden beast` number, since 6 + 6 + 154 + 484 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615448417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146580 + ... + 186323.

It is an arithmetic number, because the mean of its divisors is an integer number (209729520).

Almost surely, 2^6615448416 is an apocalyptic number.

It is an amenable number.

6615448416 is an abundant number, since it is smaller than the sum of its proper divisors (13518585504).

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

6615448416 is a wasteful number, since it uses less digits than its factorization.

6615448416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332945 (or 332931 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 6615448416 is about 81335.4069025292. The cubic root of 6615448416 is about 1877.2398397441.

The spelling of 6615448416 in words is "six billion, six hundred fifteen million, four hundred forty-eight thousand, four hundred sixteen".