260445403265 has 8 divisors (see below), whose sum is σ = 312549074088. Its totient is φ = 208346595840.

The previous prime is 260445403193. The next prime is 260445403291. The reversal of 260445403265 is 562304544062.

It can be written as a sum of positive squares in 4 ways, for example, as 104383271056 + 156062132209 = 323084^2 + 395047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260445403265 - 2¹⁴ = 260445386881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1096976 + ... + 1313105.

It is an arithmetic number, because the mean of its divisors is an integer number (39068634261).

Almost surely, 2^260445403265 is an apocalyptic number.

It is an amenable number.

260445403265 is a deficient number, since it is larger than the sum of its proper divisors (52103670823).

260445403265 is a wasteful number, since it uses less digits than its factorization.

260445403265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431699.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 260445403265 in words is "two hundred sixty billion, four hundred forty-five million, four hundred three thousand, two hundred sixty-five".