670165211 has 4 divisors (see below), whose sum is σ = 709586712. Its totient is φ = 630743712.

The previous prime is 670165193. The next prime is 670165217. The reversal of 670165211 is 112561076.

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 670165211 - 2¹⁴ = 670148827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670165217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19710725 + ... + 19710758.

It is an arithmetic number, because the mean of its divisors is an integer number (177396678).

Almost surely, 2^670165211 is an apocalyptic number.

670165211 is a deficient number, since it is larger than the sum of its proper divisors (39421501).

670165211 is a wasteful number, since it uses less digits than its factorization.

670165211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39421500.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 670165211 is about 25887.5493432654. The cubic root of 670165211 is about 875.1059293795.

It can be divided in two parts, 67016 and 5211, that added together give a palindrome (72227).

The spelling of 670165211 in words is "six hundred seventy million, one hundred sixty-five thousand, two hundred eleven".