6555641000 has 64 divisors (see below), whose sum is σ = 15489377280. Its totient is φ = 2596756800.

The previous prime is 6555640999. The next prime is 6555641039. The reversal of 6555641000 is 1465556.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71177 + ... + 134823.

It is an arithmetic number, because the mean of its divisors is an integer number (242021520).

Almost surely, 2^6555641000 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 6555641000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7744688640).

6555641000 is an abundant number, since it is smaller than the sum of its proper divisors (8933736280).

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

6555641000 is a wasteful number, since it uses less digits than its factorization.

6555641000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63771 (or 63757 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 6555641000 is about 80966.9129953711. The cubic root of 6555641000 is about 1871.5656005284.

The spelling of 6555641000 in words is "six billion, five hundred fifty-five million, six hundred forty-one thousand".