1164526356449 has 2 divisors, whose sum is σ = 1164526356450. Its totient is φ = 1164526356448.

The previous prime is 1164526356419. The next prime is 1164526356451. The reversal of 1164526356449 is 9446536254611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164525873424 + 483025 = 1079132^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164526356449 - 2²⁸ = 1164257920993 is a prime.

It is a super-2 number, since 2×1164526356449² (a number of 25 digits) contains 22 as substring.

Together with 1164526356451, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1164526356394 and 1164526356403.

It is not a weakly prime, because it can be changed into another prime (1164526356419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582263178224 + 582263178225.

It is an arithmetic number, because the mean of its divisors is an integer number (582263178225).

Almost surely, 2^{1164526356449} is an apocalyptic number.

It is an amenable number.

1164526356449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164526356449 is an equidigital number, since it uses as much as digits as its factorization.

1164526356449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18662400, while the sum is 56.

The spelling of 1164526356449 in words is "one trillion, one hundred sixty-four billion, five hundred twenty-six million, three hundred fifty-six thousand, four hundred forty-nine".