6555918960 has 120 divisors (see below), whose sum is σ = 22031964864. Its totient is φ = 1747054080.

The previous prime is 6555918883. The next prime is 6555918961. The reversal of 6555918960 is 698195556.

6555918960 is a `hidden beast` number, since 6 + 5 + 559 + 1 + 89 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 6555918897 and 6555918906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6555918961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1713850 + ... + 1717670.

Almost surely, 2^6555918960 is an apocalyptic number.

6555918960 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 6555918960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11015982432).

6555918960 is an abundant number, since it is smaller than the sum of its proper divisors (15476045904).

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

6555918960 is a wasteful number, since it uses less digits than its factorization.

6555918960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6223 (or 6214 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 54.

The square root of 6555918960 is about 80968.6294808057. The cubic root of 6555918960 is about 1871.5920516932.

The spelling of 6555918960 in words is "six billion, five hundred fifty-five million, nine hundred eighteen thousand, nine hundred sixty".