265201645522241 has 4 divisors (see below), whose sum is σ = 269549213481684. Its totient is φ = 260854077562800.

The previous prime is 265201645522207. The next prime is 265201645522283. The reversal of 265201645522241 is 142225546102562.

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 137173778318641 + 128027867203600 = 11712121^2 + 11314940^2 .

It is a cyclic number.

It is not a de Polignac number, because 265201645522241 - 2³⁴ = 265184465653057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265201645522741) 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 in 3 ways as a sum of consecutive naturals, for example, 2173783979630 + ... + 2173783979751.

It is an arithmetic number, because the mean of its divisors is an integer number (67387303370421).

Almost surely, 2^{265201645522241} is an apocalyptic number.

It is an amenable number.

265201645522241 is a deficient number, since it is larger than the sum of its proper divisors (4347567959443).

265201645522241 is an equidigital number, since it uses as much as digits as its factorization.

265201645522241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347567959442.

The product of its (nonzero) digits is 2304000, while the sum is 47.

The spelling of 265201645522241 in words is "two hundred sixty-five trillion, two hundred one billion, six hundred forty-five million, five hundred twenty-two thousand, two hundred forty-one".