265312643453603 has 4 divisors (see below), whose sum is σ = 265410220743360. Its totient is φ = 265215066163848.

The previous prime is 265312643453567. The next prime is 265312643453647. The reversal of 265312643453603 is 306354346213562.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265312643453603 is a prime.

It is a super-2 number, since 2×265312643453603² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265312643413603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48788640800 + ... + 48788646237.

It is an arithmetic number, because the mean of its divisors is an integer number (66352555185840).

Almost surely, 2^{265312643453603} is an apocalyptic number.

265312643453603 is a deficient number, since it is larger than the sum of its proper divisors (97577289757).

265312643453603 is an equidigital number, since it uses as much as digits as its factorization.

265312643453603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97577289756.

The product of its (nonzero) digits is 27993600, while the sum is 53.

The spelling of 265312643453603 in words is "two hundred sixty-five trillion, three hundred twelve billion, six hundred forty-three million, four hundred fifty-three thousand, six hundred three".