666705301 has 8 divisors (see below), whose sum is σ = 702449280. Its totient is φ = 631524432.

The previous prime is 666705271. The next prime is 666705341. The reversal of 666705301 is 103507666.

It is a happy number.

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

It is not a de Polignac number, because 666705301 - 2⁹ = 666704789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666705341) 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, 138346 + ... + 143083.

It is an arithmetic number, because the mean of its divisors is an integer number (87806160).

Almost surely, 2^666705301 is an apocalyptic number.

It is an amenable number.

666705301 is a deficient number, since it is larger than the sum of its proper divisors (35743979).

666705301 is a wasteful number, since it uses less digits than its factorization.

666705301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281555.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 666705301 is about 25820.6371145253. The cubic root of 666705301 is about 873.5973395098.

The spelling of 666705301 in words is "six hundred sixty-six million, seven hundred five thousand, three hundred one".