670507216907 has 4 divisors (see below), whose sum is σ = 731462418456. Its totient is φ = 609552015360.

The previous prime is 670507216903. The next prime is 670507216921. The reversal of 670507216907 is 709612705076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670507216907 - 2² = 670507216903 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (670507216903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30477600758 + ... + 30477600779.

It is an arithmetic number, because the mean of its divisors is an integer number (182865604614).

Almost surely, 2^670507216907 is an apocalyptic number.

670507216907 is a deficient number, since it is larger than the sum of its proper divisors (60955201549).

670507216907 is a wasteful number, since it uses less digits than its factorization.

670507216907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60955201548.

The product of its (nonzero) digits is 1111320, while the sum is 50.

The spelling of 670507216907 in words is "six hundred seventy billion, five hundred seven million, two hundred sixteen thousand, nine hundred seven".