6664104400 has 60 divisors (see below), whose sum is σ = 16071640992. Its totient is φ = 2655464320.

The previous prime is 6664104367. The next prime is 6664104413. The reversal of 6664104400 is 44014666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73527 + ... + 136873.

Almost surely, 2^6664104400 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 6664104400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8035820496).

6664104400 is an abundant number, since it is smaller than the sum of its proper divisors (9407536592).

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

6664104400 is a wasteful number, since it uses less digits than its factorization.

6664104400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63628 (or 63617 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 6664104400 is about 81633.9659700544. The cubic root of 6664104400 is about 1881.8309083401.

The spelling of 6664104400 in words is "six billion, six hundred sixty-four million, one hundred four thousand, four hundred".