6605605400 has 24 divisors (see below), whose sum is σ = 15358033020. Its totient is φ = 2642242080.

The previous prime is 6605605397. The next prime is 6605605421. The reversal of 6605605400 is 45065066.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16513814 + ... + 16514213.

Almost surely, 2^6605605400 is an apocalyptic number.

It is an amenable number.

6605605400 is an abundant number, since it is smaller than the sum of its proper divisors (8752427620).

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

6605605400 is a wasteful number, since it uses less digits than its factorization.

6605605400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33028043 (or 33028034 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 6605605400 is about 81274.8755766504. The cubic root of 6605605400 is about 1876.3083395937.

The spelling of 6605605400 in words is "six billion, six hundred five million, six hundred five thousand, four hundred".