6608646408 has 128 divisors (see below), whose sum is σ = 20592230400. Its totient is φ = 1720832256.

The previous prime is 6608646403. The next prime is 6608646427. The reversal of 6608646408 is 8046468066.

It is not an unprimeable number, because it can be changed into a prime (6608646403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153385 + ... + 191687.

It is an arithmetic number, because the mean of its divisors is an integer number (160876800).

Almost surely, 2^6608646408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6608646408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10296115200).

6608646408 is an abundant number, since it is smaller than the sum of its proper divisors (13983583992).

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

6608646408 is a wasteful number, since it uses less digits than its factorization.

6608646408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38411 (or 38407 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The square root of 6608646408 is about 81293.5815916607. The cubic root of 6608646408 is about 1876.5962260654.

The spelling of 6608646408 in words is "six billion, six hundred eight million, six hundred forty-six thousand, four hundred eight".