6605115648 has 36 divisors (see below), whose sum is σ = 17579242128. Its totient is φ = 2201704960.

The previous prime is 6605115617. The next prime is 6605115653. The reversal of 6605115648 is 8465115066.

It is a super-3 number, since 3×6605115648³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4299438 + ... + 4300973.

Almost surely, 2^6605115648 is an apocalyptic number.

It is an amenable number.

6605115648 is an abundant number, since it is smaller than the sum of its proper divisors (10974126480).

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

6605115648 is an equidigital number, since it uses as much as digits as its factorization.

6605115648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8600430 (or 8600416 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 6605115648 is about 81271.8625847839. The cubic root of 6605115648 is about 1876.2619674387.

The spelling of 6605115648 in words is "six billion, six hundred five million, one hundred fifteen thousand, six hundred forty-eight".