6660472 has 48 divisors (see below), whose sum is σ = 15656760. Its totient is φ = 2632896.

The previous prime is 6660427. The next prime is 6660473. The reversal of 6660472 is 2740666.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660473) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4443 + ... + 5749.

Almost surely, 2^6660472 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 6660472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7828380).

6660472 is an abundant number, since it is smaller than the sum of its proper divisors (8996288).

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

6660472 is a wasteful number, since it uses less digits than its factorization.

6660472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6660472 is about 2580.7890266351. The cubic root of 6660472 is about 188.1488936661.

The spelling of 6660472 in words is "six million, six hundred sixty thousand, four hundred seventy-two".