164601601 has 2 divisors, whose sum is σ = 164601602. Its totient is φ = 164601600.

The previous prime is 164601587. The next prime is 164601611. The reversal of 164601601 is 106106461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123654400 + 40947201 = 11120^2 + 6399^2 .

It is a cyclic number.

It is not a de Polignac number, because 164601601 - 2¹⁹ = 164077313 is a prime.

It is not a weakly prime, because it can be changed into another prime (164601611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82300800 + 82300801.

It is an arithmetic number, because the mean of its divisors is an integer number (82300801).

Almost surely, 2^164601601 is an apocalyptic number.

It is an amenable number.

164601601 is a deficient number, since it is larger than the sum of its proper divisors (1).

164601601 is an equidigital number, since it uses as much as digits as its factorization.

164601601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 164601601 is about 12829.7155463401. The cubic root of 164601601 is about 548.0388567560.

The spelling of 164601601 in words is "one hundred sixty-four million, six hundred one thousand, six hundred one".