1164956748509 has 2 divisors, whose sum is σ = 1164956748510. Its totient is φ = 1164956748508.

The previous prime is 1164956748457. The next prime is 1164956748511. The reversal of 1164956748509 is 9058476594611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 692640062500 + 472316686009 = 832250^2 + 687253^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164956748509 - 2⁸ = 1164956748253 is a prime.

It is a super-2 number, since 2×1164956748509² (a number of 25 digits) contains 22 as substring.

Together with 1164956748511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1164956748409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582478374254 + 582478374255.

It is an arithmetic number, because the mean of its divisors is an integer number (582478374255).

Almost surely, 2^{1164956748509} is an apocalyptic number.

It is an amenable number.

1164956748509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164956748509 is an equidigital number, since it uses as much as digits as its factorization.

1164956748509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 1164956748509 in words is "one trillion, one hundred sixty-four billion, nine hundred fifty-six million, seven hundred forty-eight thousand, five hundred nine".