6660741 has 8 divisors (see below), whose sum is σ = 8945440. Its totient is φ = 4408272.

The previous prime is 6660733. The next prime is 6660751. The reversal of 6660741 is 1470666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6660741 - 2³ = 6660733 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 6660699 and 6660708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7570 + ... + 8403.

It is an arithmetic number, because the mean of its divisors is an integer number (1118180).

Almost surely, 2^6660741 is an apocalyptic number.

It is an amenable number.

6660741 is a deficient number, since it is larger than the sum of its proper divisors (2284699).

6660741 is a wasteful number, since it uses less digits than its factorization.

6660741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16115.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 6660741 is about 2580.8411419535. The cubic root of 6660741 is about 188.1514265882.

The spelling of 6660741 in words is "six million, six hundred sixty thousand, seven hundred forty-one".