6656460 has 48 divisors (see below), whose sum is σ = 19622400. Its totient is φ = 1681344.

The previous prime is 6656459. The next prime is 6656471. The reversal of 6656460 is 646566.

6656460 = 856² + 857² + ... + 864².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780 + ... + 4059.

It is an arithmetic number, because the mean of its divisors is an integer number (408800).

Almost surely, 2^6656460 is an apocalyptic number.

6656460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6656460 is an abundant number, since it is smaller than the sum of its proper divisors (12965940).

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

6656460 is a wasteful number, since it uses less digits than its factorization.

6656460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870 (or 5868 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 6656460 is about 2580.0116278808. The cubic root of 6656460 is about 188.1111083071. Note that the first 4 decimals are identical.

The spelling of 6656460 in words is "six million, six hundred fifty-six thousand, four hundred sixty".