666704701 has 8 divisors (see below), whose sum is σ = 720530720. Its totient is φ = 613241712.

The previous prime is 666704681. The next prime is 666704747. The reversal of 666704701 is 107407666.

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

It is a cyclic number.

It is not a de Polignac number, because 666704701 - 2⁵ = 666704669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666704771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86931 + ... + 94288.

It is an arithmetic number, because the mean of its divisors is an integer number (90066340).

Almost surely, 2^666704701 is an apocalyptic number.

It is an amenable number.

666704701 is a deficient number, since it is larger than the sum of its proper divisors (53826019).

666704701 is a wasteful number, since it uses less digits than its factorization.

666704701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181515.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 666704701 is about 25820.6254959093. The cubic root of 666704701 is about 873.5970774457.

The spelling of 666704701 in words is "six hundred sixty-six million, seven hundred four thousand, seven hundred one".