6556980 has 48 divisors (see below), whose sum is σ = 18555264. Its totient is φ = 1729920.

The previous prime is 6556973. The next prime is 6556993. The reversal of 6556980 is 896556.

It is a congruent number.

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, 5650 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (386568).

Almost surely, 2^6556980 is an apocalyptic number.

6556980 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 6556980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9277632).

6556980 is an abundant number, since it is smaller than the sum of its proper divisors (11998284).

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

6556980 is a wasteful number, since it uses less digits than its factorization.

6556980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 6556980 is about 2560.6600711535. The cubic root of 6556980 is about 187.1693015261.

The spelling of 6556980 in words is "six million, five hundred fifty-six thousand, nine hundred eighty".