670687916808 has 64 divisors (see below), whose sum is σ = 2063655135360. Its totient is φ = 176884724736.

The previous prime is 670687916791. The next prime is 670687916827. The reversal of 670687916808 is 808619786076.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153543585 + ... + 153547952.

It is an arithmetic number, because the mean of its divisors is an integer number (32244611490).

Almost surely, 2^670687916808 is an apocalyptic number.

It is an amenable number.

670687916808 is an abundant number, since it is smaller than the sum of its proper divisors (1392967218552).

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

670687916808 is a wasteful number, since it uses less digits than its factorization.

670687916808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307091566 (or 307091562 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 66.

The spelling of 670687916808 in words is "six hundred seventy billion, six hundred eighty-seven million, nine hundred sixteen thousand, eight hundred eight".