6609638976 has 112 divisors (see below), whose sum is σ = 17935382976. Its totient is φ = 2147549184.

The previous prime is 6609638963. The next prime is 6609638977. The reversal of 6609638976 is 6798369066.

It is not an unprimeable number, because it can be changed into a prime (6609638977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1245160 + ... + 1250456.

It is an arithmetic number, because the mean of its divisors is an integer number (160137348).

Almost surely, 2^6609638976 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 6609638976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8967691488).

6609638976 is an abundant number, since it is smaller than the sum of its proper divisors (11325744000).

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

6609638976 is a wasteful number, since it uses less digits than its factorization.

6609638976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476 (or 5466 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 60.

The square root of 6609638976 is about 81299.6861986564. The cubic root of 6609638976 is about 1876.6901714820.

The spelling of 6609638976 in words is "six billion, six hundred nine million, six hundred thirty-eight thousand, nine hundred seventy-six".