6660695 has 8 divisors (see below), whose sum is σ = 8054640. Its totient is φ = 5287360.

The previous prime is 6660679. The next prime is 6660707. The reversal of 6660695 is 5960666.

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

It is not a de Polignac number, because 6660695 - 2⁴ = 6660679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4430 + ... + 5739.

It is an arithmetic number, because the mean of its divisors is an integer number (1006830).

Almost surely, 2^6660695 is an apocalyptic number.

6660695 is a deficient number, since it is larger than the sum of its proper divisors (1393945).

6660695 is a wasteful number, since it uses less digits than its factorization.

6660695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 6660695 is about 2580.8322301149. The cubic root of 6660695 is about 188.1509934539.

The spelling of 6660695 in words is "six million, six hundred sixty thousand, six hundred ninety-five".