164655769 has 2 divisors, whose sum is σ = 164655770. Its totient is φ = 164655768.

The previous prime is 164655739. The next prime is 164655793. The reversal of 164655769 is 967556461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159062544 + 5593225 = 12612^2 + 2365^2 .

It is an emirp because it is prime and its reverse (967556461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164655769 - 2¹⁷ = 164524697 is a prime.

It is a super-2 number, since 2×164655769² = 54223044529962722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164655719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82327884 + 82327885.

It is an arithmetic number, because the mean of its divisors is an integer number (82327885).

Almost surely, 2^164655769 is an apocalyptic number.

It is an amenable number.

164655769 is a deficient number, since it is larger than the sum of its proper divisors (1).

164655769 is an equidigital number, since it uses as much as digits as its factorization.

164655769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 49.

The square root of 164655769 is about 12831.8264093620. The cubic root of 164655769 is about 548.0989673762.

The spelling of 164655769 in words is "one hundred sixty-four million, six hundred fifty-five thousand, seven hundred sixty-nine".