6555479040 has 528 divisors, whose sum is σ = 25750932480. Its totient is φ = 1585889280.

The previous prime is 6555479039. The next prime is 6555479093. The reversal of 6555479040 is 409745556.

6555479040 is a `hidden beast` number, since 6 + 5 + 554 + 7 + 90 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (528).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13685521 + ... + 13685999.

Almost surely, 2^6555479040 is an apocalyptic number.

6555479040 is a gapful number since it is divisible by the number (60) 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 6555479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12875466240).

6555479040 is an abundant number, since it is smaller than the sum of its proper divisors (19195453440).

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

6555479040 is a wasteful number, since it uses less digits than its factorization.

6555479040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 6555479040 is about 80965.9128275597. The cubic root of 6555479040 is about 1871.5501877838.

The spelling of 6555479040 in words is "six billion, five hundred fifty-five million, four hundred seventy-nine thousand, forty".