6655407104 has 66 divisors (see below), whose sum is σ = 13449465510. Its totient is φ = 3291774976.

The previous prime is 6655407091. The next prime is 6655407119. The reversal of 6655407104 is 4017045566.

It can be written as a sum of positive squares in 3 ways, for example, as 54169600 + 6601237504 = 7360^2 + 81248^2 .

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, 13075202 + ... + 13075710.

Almost surely, 2^6655407104 is an apocalyptic number.

6655407104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6655407104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6724732755).

6655407104 is an abundant number, since it is smaller than the sum of its proper divisors (6794058406).

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

6655407104 is an equidigital number, since it uses as much as digits as its factorization.

6655407104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 6655407104 is about 81580.6784968108. The cubic root of 6655407104 is about 1881.0118952757.

The spelling of 6655407104 in words is "six billion, six hundred fifty-five million, four hundred seven thousand, one hundred four".