666070 has 16 divisors (see below), whose sum is σ = 1227600. Its totient is φ = 260064.

The previous prime is 666067. The next prime is 666073. The reversal of 666070 is 70666.

666070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (666067) and next prime (666073).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666073) 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, 345 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (76725).

2⁶⁶⁶⁰⁷⁰ is an apocalyptic number.

666070 is a deficient number, since it is larger than the sum of its proper divisors (561530).

666070 is a wasteful number, since it uses less digits than its factorization.

666070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 666070 is about 816.1311169169. The cubic root of 666070 is about 87.3319768775.

The spelling of 666070 in words is "six hundred sixty-six thousand, seventy".