670646016 has 108 divisors (see below), whose sum is σ = 1986150712. Its totient is φ = 217479168.

The previous prime is 670645993. The next prime is 670646023. The reversal of 670646016 is 610646076.

670646016 is a `hidden beast` number, since 6 + 7 + 0 + 646 + 0 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81315 + ... + 89181.

Almost surely, 2^670646016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670646016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993075356).

670646016 is an abundant number, since it is smaller than the sum of its proper divisors (1315504696).

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

670646016 is a wasteful number, since it uses less digits than its factorization.

670646016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7926 (or 7909 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 670646016 is about 25896.8340922206. The cubic root of 670646016 is about 875.3151587442.

The spelling of 670646016 in words is "six hundred seventy million, six hundred forty-six thousand, sixteen".