670164559 has 2 divisors, whose sum is σ = 670164560. Its totient is φ = 670164558.

The previous prime is 670164553. The next prime is 670164563. The reversal of 670164559 is 955461076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670164559 - 2¹³ = 670156367 is a prime.

It is a super-2 number, since 2×670164559² = 898241072279328962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670164553) 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 as a sum of consecutive naturals, namely, 335082279 + 335082280.

It is an arithmetic number, because the mean of its divisors is an integer number (335082280).

Almost surely, 2^670164559 is an apocalyptic number.

670164559 is a deficient number, since it is larger than the sum of its proper divisors (1).

670164559 is an equidigital number, since it uses as much as digits as its factorization.

670164559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 670164559 is about 25887.5367503361. The cubic root of 670164559 is about 875.1056455842.

The spelling of 670164559 in words is "six hundred seventy million, one hundred sixty-four thousand, five hundred fifty-nine".