6554911680 has 336 divisors, whose sum is σ = 24914620224. Its totient is φ = 1573355520.

The previous prime is 6554911667. The next prime is 6554911721. The reversal of 6554911680 is 861194556.

6554911680 is a `hidden beast` number, since 6 + 554 + 9 + 1 + 16 + 80 = 666.

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1123170 + ... + 1128990.

Almost surely, 2^6554911680 is an apocalyptic number.

6554911680 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 6554911680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12457310112).

6554911680 is an abundant number, since it is smaller than the sum of its proper divisors (18359708544).

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

6554911680 is a wasteful number, since it uses less digits than its factorization.

6554911680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884 (or 5871 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 6554911680 is about 80962.4090550670. The cubic root of 6554911680 is about 1871.4961935935.

The spelling of 6554911680 in words is "six billion, five hundred fifty-four million, nine hundred eleven thousand, six hundred eighty".