320164567 has 2 divisors, whose sum is σ = 320164568. Its totient is φ = 320164566.

The previous prime is 320164543. The next prime is 320164571. The reversal of 320164567 is 765461023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320164567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320164967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160082283 + 160082284.

It is an arithmetic number, because the mean of its divisors is an integer number (160082284).

Almost surely, 2^320164567 is an apocalyptic number.

320164567 is a deficient number, since it is larger than the sum of its proper divisors (1).

320164567 is an equidigital number, since it uses as much as digits as its factorization.

320164567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 320164567 is about 17893.1430162507. The cubic root of 320164567 is about 684.1076109147.

The spelling of 320164567 in words is "three hundred twenty million, one hundred sixty-four thousand, five hundred sixty-seven".