163224057256441 has 4 divisors (see below), whose sum is σ = 163924589691252. Its totient is φ = 162523524821632.

The previous prime is 163224057256439. The next prime is 163224057256489. The reversal of 163224057256441 is 144652750422361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113405460640000 + 49818596616441 = 10649200^2 + 7058229^2 .

It is a cyclic number.

It is not a de Polignac number, because 163224057256441 - 2¹ = 163224057256439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163224057256541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350266217056 + ... + 350266217521.

It is an arithmetic number, because the mean of its divisors is an integer number (40981147422813).

Almost surely, 2^{163224057256441} is an apocalyptic number.

It is an amenable number.

163224057256441 is a deficient number, since it is larger than the sum of its proper divisors (700532434811).

163224057256441 is an equidigital number, since it uses as much as digits as its factorization.

163224057256441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700532434810.

The product of its (nonzero) digits is 9676800, while the sum is 52.

The spelling of 163224057256441 in words is "one hundred sixty-three trillion, two hundred twenty-four billion, fifty-seven million, two hundred fifty-six thousand, four hundred forty-one".