1164665669 has 2 divisors, whose sum is σ = 1164665670. Its totient is φ = 1164665668.

The previous prime is 1164665617. The next prime is 1164665681. The reversal of 1164665669 is 9665664611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1117564900 + 47100769 = 33430^2 + 6863^2 .

It is an emirp because it is prime and its reverse (9665664611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1164665669 - 2²⁰ = 1163617093 is a prime.

It is a super-2 number, since 2×1164665669² = 2712892241094435122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1164665269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582332834 + 582332835.

It is an arithmetic number, because the mean of its divisors is an integer number (582332835).

Almost surely, 2^1164665669 is an apocalyptic number.

It is an amenable number.

1164665669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164665669 is an equidigital number, since it uses as much as digits as its factorization.

1164665669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 50.

The square root of 1164665669 is about 34127.1983760753. The cubic root of 1164665669 is about 1052.1243970565.

The spelling of 1164665669 in words is "one billion, one hundred sixty-four million, six hundred sixty-five thousand, six hundred sixty-nine".