667006670 has 64 divisors (see below), whose sum is σ = 1413987840. Its totient is φ = 223977600.

The previous prime is 667006631. The next prime is 667006687. The reversal of 667006670 is 76600766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68825 + ... + 77915.

It is an arithmetic number, because the mean of its divisors is an integer number (22093560).

Almost surely, 2^667006670 is an apocalyptic number.

667006670 is an abundant number, since it is smaller than the sum of its proper divisors (746981170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667006670 is a wasteful number, since it uses less digits than its factorization.

667006670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9161.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 667006670 is about 25826.4722716828. The cubic root of 667006670 is about 873.7289496315.

The spelling of 667006670 in words is "six hundred sixty-seven million, six thousand, six hundred seventy".