6651760 has 80 divisors (see below), whose sum is σ = 16847136. Its totient is φ = 2433024.

The previous prime is 6651727. The next prime is 6651773. The reversal of 6651760 is 671566.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×6651760² = 88491822195200, which contains 22 as substring.

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, 91084 + ... + 91156.

Almost surely, 2^6651760 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 6651760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8423568).

6651760 is an abundant number, since it is smaller than the sum of its proper divisors (10195376).

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

6651760 is a wasteful number, since it uses less digits than its factorization.

6651760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 6651760 is about 2579.1006184327. The cubic root of 6651760 is about 188.0668239889.

The spelling of 6651760 in words is "six million, six hundred fifty-one thousand, seven hundred sixty".