670755818505 has 16 divisors (see below), whose sum is σ = 1073427073344. Its totient is φ = 357663848640.

The previous prime is 670755818501. The next prime is 670755818519. The reversal of 670755818505 is 505818557076.

It is not a de Polignac number, because 670755818505 - 2² = 670755818501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670755818501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4460314 + ... + 4608243.

It is an arithmetic number, because the mean of its divisors is an integer number (67089192084).

Almost surely, 2^670755818505 is an apocalyptic number.

It is an amenable number.

670755818505 is a deficient number, since it is larger than the sum of its proper divisors (402671254839).

670755818505 is a wasteful number, since it uses less digits than its factorization.

670755818505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9073496.

The product of its (nonzero) digits is 11760000, while the sum is 57.

The spelling of 670755818505 in words is "six hundred seventy billion, seven hundred fifty-five million, eight hundred eighteen thousand, five hundred five".