6658980 has 96 divisors (see below), whose sum is σ = 19958400. Its totient is φ = 1655808.

The previous prime is 6658969. The next prime is 6658997. The reversal of 6658980 is 898566.

6658980 = T₁₇₇ + T₁₇₈ + ... + T₃₅₆.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74776 + ... + 74864.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

Almost surely, 2^6658980 is an apocalyptic number.

6658980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is a pronic number, being equal to 2580×2581.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6658980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9979200).

6658980 is an abundant number, since it is smaller than the sum of its proper divisors (13299420).

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

6658980 is a wasteful number, since it uses less digits than its factorization.

6658980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 6658980 is about 2580.4999515598. The cubic root of 6658980 is about 188.1348436551.

The spelling of 6658980 in words is "six million, six hundred fifty-eight thousand, nine hundred eighty".