163567532449 has 2 divisors, whose sum is σ = 163567532450. Its totient is φ = 163567532448.

The previous prime is 163567532413. The next prime is 163567532467. The reversal of 163567532449 is 944235765361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162403358049 + 1164174400 = 402993^2 + 34120^2 .

It is a cyclic number.

It is not a de Polignac number, because 163567532449 - 2⁷ = 163567532321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163567532449.

It is not a weakly prime, because it can be changed into another prime (163567533449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81783766224 + 81783766225.

It is an arithmetic number, because the mean of its divisors is an integer number (81783766225).

Almost surely, 2^163567532449 is an apocalyptic number.

It is an amenable number.

163567532449 is a deficient number, since it is larger than the sum of its proper divisors (1).

163567532449 is an equidigital number, since it uses as much as digits as its factorization.

163567532449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 55.

The spelling of 163567532449 in words is "one hundred sixty-three billion, five hundred sixty-seven million, five hundred thirty-two thousand, four hundred forty-nine".